S3 Cases are made to be reliable and durable so that everyone relying on your equipment can rely on you. S3 Cases have many applications to protect your equipment when you need it most.

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S3 Cases are durable and customizable for use in the most extreme circumstances. When your equipment has to work when you need it, trust an S3 Case in the field.

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S3 Cases are water-resistant, pressure-resistant and ready for any situation. When your expensive, delicate equipment needs protection, count on S3 Cases.

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I just wanted to tell you how much I liked having the S3 T3500 case with me on my journey down the Mississippi. I was just about 40 yards or so from shore and the Lake Winnibigoshish dam when my canoe was hit by what the the National Weather Service said was 120 mile an hour straight line winds. My canoe was ripped out from under me (if not for my life preserver I would have drown) and I lost a lot of my gear including my GPS because it wasn’t in the S3 Dry Box at the time. My weather radio, MP3 player, headlamp and my camera all were saved because after the storm let up I searched the shore line and there was my S3 3500 Dry Box floating in the weeds and the driftwood. Everything in the S3 case was still dry and was not damaged in any way.

Michael B

Thank you again for all of your help. You and the company are very pleasant to work with.

J. Ruane

Safety Meeting Outlines, Inc.

An S3 case houses our solar battery on an ocean buoy, definitely an extreme environment.

B. Lee

Automatic Power

Just wanted to thank you for stellar customer service!!! The latch arrived promptly.

B. Heiter

Also… didn’t know if I ever told you or not, but last year I had a customer in who was looking at my boxes. I was telling them what great boxes they were, how they were waterproof, etc… he looked at me and said, ‘You don’t have to tell me how wonderful these boxes are… let me tell you…’ So he proceeded to tell me that he survived Katrina, and when they got home they still had knee deep water in their yard… he found this box floating back there, and he picked it up and it has a new 35 mm camera in it, still intact… so the box and its contents had survived the storm…

L. Walter

Pleasure Point Park & Marina

By the way I am starting to see S3 cases everywhere I go! My artist loves them. I can’t wait to be part of the fun.

C. Raffone

Our products were absolutely secure under the most extreme circumstances. S3 was committed to customizing the case to our specific needs.

K. Klimann

Survival Inc.

Replacement clips arrived yesterday, many thanks for your fast assistance. Your level of service is to be commended and I will be recommending you to other climbers and kayakers over here in Scotland.

R. Davidson

You guys rock!

M. Hubbard

Secret Safes

Your team is awesome in order acknowledgements and timely shipping information. No other company I deal with comes close to that kind of service.

A. Hahn

Northstar Cases

Thanks for your help, I didn’t expect such good service, it was a refreshing surprise.

L. Schoonover

The S3 T1000 performs flawlessly in keeping our GPS electronics dry.

A. Stewart



Are you interested in learning how our hard-sided custom cases can help your business? Contact us for a free sample. No matter how extreme your environment, S3 Cases has a protective case for your needs.