Mega Folding Wake Shaper S22 It may look like a 510545500604 It may look like a basic day pack for schlepping needed layers and books GRS Certified (Global Recycled Standard) Insulation 100g 80g Insulation that's warmer in the body and lighter in the sleeves to keep you comfortable in cold temperatures while still allowing natural movement Ergonomic Sleeves Ergonomic sleeve design matches the skier's body position for comfort and easy movement Ventilated Zip underarm vents help regulate body temperature Critically Taped Seams Main seams are sealed to block rain The Liquid Force Wake Surf Edge will make a small wake bigger and transform a big wake into a Tsunami Teach your old boat some new tricks