Name: Seahorse 520
Brand: Evergreen
SKU: 283373
Price: 109.0 USD
Availability: InStock

Light weight. Sturdy. Sharp AF.

Watch The Fire Hose get Destroyed

Watch The Video

Fast Shipping

Secure Checkout

Fast & Easy Returns

Trusted by Pros

$109.00

Shipping calculated at checkout.

Color

Black

SOLAS Orange

Yellow

Insert Options

Accuform Foam

Empty

Locks

QuickSnap Latches

Metal Keyed Locks

30 DAY RISK FREE RETURNS & SECURE CHECKOUT

$9.99 Skip The Line Shipping Available

5 Year Limited Warranty

Quantity

NOTIFY ME WHEN IN STOCK

The #1 Protective Case Trusted by Experts – The Seahorse 520 is one of our most versatile, medium-sized protective hard cases. The solid polypropylene construction is precision designed and tested to last. A top choice of professionals, this dry box fully protects specialized instruments, test equipment, tools, firearms, or cameras. Designed to last a lifetime – a Seahorse case ensures gear stays dry, secure, and protected.
Waterproof, Crushproof, Rust-Proof – Virtually indestructible, it’s built to withstand the elements. Rigorously tested to be rustproof and IP67 Waterproof, this tough case is also dustproof and impact resistant. Proven to float with contents under 24 lbs, it’s easily retrieved if dropped in water!
Automatic Pressure Equalization – The SE520’s QuickSnap Latches with Automatic Pressure Equalization, equalizes pressure upon opening. QuickSnap Latches are designed for consistent o-ring seal, creating IP67 waterproof security. With a molded comfort grip handle, no detail was overlooked with the Seahorse 520.
Tough Enough for TSA – Easily meet TSA requirements with this TSA Approved, ATA-300 rated case. Securely lock your case with TSA approved locks using the integrated eyelets. Metal Keyed Locks upgrade is also available. Check out our blog about Air Travel with Evergreen Cases.
Interior Option Upgrades – Experience amazing protection Empty, or upgrade to the AccuformFoam.

AccuformFoam – Customizable AccuformFoam provides a perfect fit with low-density, pull-apart foam that cradles equipment.

USA Made / Lifetime Guarantee – Seahorse stands on the integrity and quality of their full line of cases and manufactures EVERY case in the United States. Providing a lifetime guarantee against manufacturing defects is standard operating procedures. For more information, click here.

Dims + Specs

Exterior: 14.9" x 12.1" x 6.9"
Interior: 13.5" x 9.9" x 6.0"
Buoyancy: 29 lbs
Weight Capacity: 50 lbs
Weight Empty: 4.73 lbs

IP67 Waterproof
Automatic Pressure Equalization System
Rust proof hinges
Impact resistant
ATA-300 Rated

ONE SHEAR® Pro

Original design, trusted by thousands of professionals worldwide
Heavy-duty stainless steel build, designed for first responders, military, and tactical gear
Cuts through tough fabrics, webbing, boots, and gear reliably
Best for users who want a proven, all-around trauma shear

ONE SHEAR® V2 (DLC Coated, 2.25mm)

The next evolution of the Pro with upgraded Diamond-Like Carbon coating
DLC provides extreme durability, scratch resistance, and corrosion protection
Built for the harshest environments and long-term heavy-duty use
Ideal for paramedics, law enforcement, military, and survivalists who demand the toughest option

ONE SHEAR® Mini

Compact, lightweight version for Everyday Carry (EDC)
Cuts bandages, tape, paracord, and light materials with ease
Perfect for range bags, hiking kits, glove compartments, and compact first aid setups
Best choice for adventurers, outdoorsmen, and anyone needing a pocket-sized solution

ONE SHEAR® BUS (Basic Utility Shear, Fluoride Coated, 1.8mm)

Budget-friendly model, crafted from rolled J2 420 steel with fluoride coating
Great for medical students, training environments, and light clinical use
Cuts bandages, gauze, and clothing but not designed for extreme-duty scenarios
Ideal as a starter shear, classroom tool, or backup option

All Items are Shipped using USPS at this time; unless international orders than UPS.

Available USA Shipping options:

Processing times

Standard Processing: 3-5 days processing USPS

Skip The Line Processing: 1-2 day processing USPS

Available International (non-USA):

Under 1lbs: $40 UPS

1-lbs $70 UPS

[{"id":51345124622567,"title":"Black \/ Accuform Foam \/ QuickSnap Latches","option1":"Black","option2":"Accuform Foam","option3":"QuickSnap Latches","sku":"283373","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773161703,"product_id":9334574383335,"position":1,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_16332cde-0554-4c06-a8fb-d758fad93836.png?v=1756840984","variant_ids":[51345124622567,51345124655335]},"available":true,"name":"Seahorse 520 - Black \/ Accuform Foam \/ QuickSnap Latches","public_title":"Black \/ Accuform Foam \/ QuickSnap Latches","options":["Black","Accuform Foam","QuickSnap Latches"],"price":10900,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728240074983,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_16332cde-0554-4c06-a8fb-d758fad93836.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124655335,"title":"Black \/ Accuform Foam \/ Metal Keyed Locks","option1":"Black","option2":"Accuform Foam","option3":"Metal Keyed Locks","sku":"283377","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773161703,"product_id":9334574383335,"position":1,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_16332cde-0554-4c06-a8fb-d758fad93836.png?v=1756840984","variant_ids":[51345124622567,51345124655335]},"available":true,"name":"Seahorse 520 - Black \/ Accuform Foam \/ Metal Keyed Locks","public_title":"Black \/ Accuform Foam \/ Metal Keyed Locks","options":["Black","Accuform Foam","Metal Keyed Locks"],"price":12450,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728240074983,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_16332cde-0554-4c06-a8fb-d758fad93836.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124688103,"title":"Black \/ Empty \/ QuickSnap Latches","option1":"Black","option2":"Empty","option3":"QuickSnap Latches","sku":"283152","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773685991,"product_id":9334574383335,"position":17,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_eb73f171-531f-4fcc-a36b-6dd5f495bc96.png?v=1756840984","variant_ids":[51345124688103,51345124720871]},"available":true,"name":"Seahorse 520 - Black \/ Empty \/ QuickSnap Latches","public_title":"Black \/ Empty \/ QuickSnap Latches","options":["Black","Empty","QuickSnap Latches"],"price":9300,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728244367591,"position":17,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_eb73f171-531f-4fcc-a36b-6dd5f495bc96.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124720871,"title":"Black \/ Empty \/ Metal Keyed Locks","option1":"Black","option2":"Empty","option3":"Metal Keyed Locks","sku":"283385","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773685991,"product_id":9334574383335,"position":17,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_eb73f171-531f-4fcc-a36b-6dd5f495bc96.png?v=1756840984","variant_ids":[51345124688103,51345124720871]},"available":true,"name":"Seahorse 520 - Black \/ Empty \/ Metal Keyed Locks","public_title":"Black \/ Empty \/ Metal Keyed Locks","options":["Black","Empty","Metal Keyed Locks"],"price":10800,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728244367591,"position":17,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_eb73f171-531f-4fcc-a36b-6dd5f495bc96.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124753639,"title":"SOLAS Orange \/ Accuform Foam \/ QuickSnap Latches","option1":"SOLAS Orange","option2":"Accuform Foam","option3":"QuickSnap Latches","sku":"283376","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773653223,"product_id":9334574383335,"position":16,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_614f625e-0ff1-4b3f-9392-d4b9b68a9c3d.png?v=1756840984","variant_ids":[51345124753639,51345124786407]},"available":true,"name":"Seahorse 520 - SOLAS Orange \/ Accuform Foam \/ QuickSnap Latches","public_title":"SOLAS Orange \/ Accuform Foam \/ QuickSnap Latches","options":["SOLAS Orange","Accuform Foam","QuickSnap Latches"],"price":10900,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728244170983,"position":16,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_614f625e-0ff1-4b3f-9392-d4b9b68a9c3d.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124786407,"title":"SOLAS Orange \/ Accuform Foam \/ Metal Keyed Locks","option1":"SOLAS Orange","option2":"Accuform Foam","option3":"Metal Keyed Locks","sku":"283380","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773653223,"product_id":9334574383335,"position":16,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_614f625e-0ff1-4b3f-9392-d4b9b68a9c3d.png?v=1756840984","variant_ids":[51345124753639,51345124786407]},"available":true,"name":"Seahorse 520 - SOLAS Orange \/ Accuform Foam \/ Metal Keyed Locks","public_title":"SOLAS Orange \/ Accuform Foam \/ Metal Keyed Locks","options":["SOLAS Orange","Accuform Foam","Metal Keyed Locks"],"price":12450,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728244170983,"position":16,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_614f625e-0ff1-4b3f-9392-d4b9b68a9c3d.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124819175,"title":"SOLAS Orange \/ Empty \/ QuickSnap Latches","option1":"SOLAS Orange","option2":"Empty","option3":"QuickSnap Latches","sku":"283155","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773620455,"product_id":9334574383335,"position":15,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_bff237ce-9c20-4dd5-9c96-5cca29f38480.png?v=1756840984","variant_ids":[51345124819175,51345124851943]},"available":true,"name":"Seahorse 520 - SOLAS Orange \/ Empty \/ QuickSnap Latches","public_title":"SOLAS Orange \/ Empty \/ QuickSnap Latches","options":["SOLAS Orange","Empty","QuickSnap Latches"],"price":9300,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728243974375,"position":15,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_bff237ce-9c20-4dd5-9c96-5cca29f38480.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124851943,"title":"SOLAS Orange \/ Empty \/ Metal Keyed Locks","option1":"SOLAS Orange","option2":"Empty","option3":"Metal Keyed Locks","sku":"283388","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773620455,"product_id":9334574383335,"position":15,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_bff237ce-9c20-4dd5-9c96-5cca29f38480.png?v=1756840984","variant_ids":[51345124819175,51345124851943]},"available":true,"name":"Seahorse 520 - SOLAS Orange \/ Empty \/ Metal Keyed Locks","public_title":"SOLAS Orange \/ Empty \/ Metal Keyed Locks","options":["SOLAS Orange","Empty","Metal Keyed Locks"],"price":10800,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728243974375,"position":15,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11_bff237ce-9c20-4dd5-9c96-5cca29f38480.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124884711,"title":"Yellow \/ Accuform Foam \/ QuickSnap Latches","option1":"Yellow","option2":"Accuform Foam","option3":"QuickSnap Latches","sku":"283375","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773587687,"product_id":9334574383335,"position":14,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12.png?v=1756840984","variant_ids":[51345124884711,51345124917479]},"available":true,"name":"Seahorse 520 - Yellow \/ Accuform Foam \/ QuickSnap Latches","public_title":"Yellow \/ Accuform Foam \/ QuickSnap Latches","options":["Yellow","Accuform Foam","QuickSnap Latches"],"price":10900,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728243777767,"position":14,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124917479,"title":"Yellow \/ Accuform Foam \/ Metal Keyed Locks","option1":"Yellow","option2":"Accuform Foam","option3":"Metal Keyed Locks","sku":"283379","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773587687,"product_id":9334574383335,"position":14,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12.png?v=1756840984","variant_ids":[51345124884711,51345124917479]},"available":true,"name":"Seahorse 520 - Yellow \/ Accuform Foam \/ Metal Keyed Locks","public_title":"Yellow \/ Accuform Foam \/ Metal Keyed Locks","options":["Yellow","Accuform Foam","Metal Keyed Locks"],"price":12450,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728243777767,"position":14,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124950247,"title":"Yellow \/ Empty \/ QuickSnap Latches","option1":"Yellow","option2":"Empty","option3":"QuickSnap Latches","sku":"283154","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773554919,"product_id":9334574383335,"position":13,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:05-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11.png?v=1756840985","variant_ids":[51345124950247,51345124983015]},"available":true,"name":"Seahorse 520 - Yellow \/ Empty \/ QuickSnap Latches","public_title":"Yellow \/ Empty \/ QuickSnap Latches","options":["Yellow","Empty","QuickSnap Latches"],"price":9300,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728243581159,"position":13,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11.png?v=1756840985"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":51345124983015,"title":"Yellow \/ Empty \/ Metal Keyed Locks","option1":"Yellow","option2":"Empty","option3":"Metal Keyed Locks","sku":"283387","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773554919,"product_id":9334574383335,"position":13,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:05-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11.png?v=1756840985","variant_ids":[51345124950247,51345124983015]},"available":true,"name":"Seahorse 520 - Yellow \/ Empty \/ Metal Keyed Locks","public_title":"Yellow \/ Empty \/ Metal Keyed Locks","options":["Yellow","Empty","Metal Keyed Locks"],"price":10800,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728243581159,"position":13,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard11.png?v=1756840985"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}]

{"id":51345124622567,"title":"Black \/ Accuform Foam \/ QuickSnap Latches","option1":"Black","option2":"Accuform Foam","option3":"QuickSnap Latches","sku":"283373","requires_shipping":true,"taxable":true,"featured_image":{"id":47123773161703,"product_id":9334574383335,"position":1,"created_at":"2025-09-02T15:23:01-04:00","updated_at":"2025-09-02T15:23:04-04:00","alt":"Seahorse 520","width":2000,"height":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_16332cde-0554-4c06-a8fb-d758fad93836.png?v=1756840984","variant_ids":[51345124622567,51345124655335]},"available":true,"name":"Seahorse 520 - Black \/ Accuform Foam \/ QuickSnap Latches","public_title":"Black \/ Accuform Foam \/ QuickSnap Latches","options":["Black","Accuform Foam","QuickSnap Latches"],"price":10900,"weight":2722,"compare_at_price":null,"inventory_management":"shopify","barcode":null,"featured_media":{"alt":"Seahorse 520","id":37728240074983,"position":1,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.oneshear.com\/cdn\/shop\/files\/Artboard12_16332cde-0554-4c06-a8fb-d758fad93836.png?v=1756840984"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}