The lightweight Glacier Breeze is perfect for paddling in warmer conditions. It features the comfort of the new Dragon Collar with Velcro tunnel straps allowing for easy adjustability and good ventilation. The tunnel and deck utilize Snap Dragon's waterproof/breathable material. The Safety Off Strap is a standard feature. To find the right deck size for your kayak, visit http://snapdragondesign.com/fit-lists. For tube sizing , visit http:snapdragondesign.com/tube-size-index