Purpose Built – The Defender design incorporates unique fit, function, and adjustment based around the features of Atlas’ brace family.Modular – Interchangeable parts and straps allow for 8 unique configurations that can be worn with or without a neck brace, over or under a jersey, and in both full or front only versions.Waterproof – High performance foam is lightweight, tough, comfortable, and waterproof. No more added water weight, or damp feeling after washing.The Defender is available in one adult size, and is the perfect additions to any brace.Catch it all on film – Each Atlas Defender comes with a GoPro camera chest mount. Bolt this optional mount directly to your Defender along with your own GoPro camera to get a perfect view of your riding, racing, or other extreme sports activity. (Camera not included).One size fits most.