Elasticdouble-d-ring closurePATENTED GT-STRETCH TECHNOLOGY - iWader patented GT-STRETCH highly elastic fabric is a revolutionary super-stretchable and lightweight material, it gives you restricted movement and ultimate breathable waders. Constructed with 3-layers and 4-way stretch GT-STRETCH fabric that makes this the most comfortable set you’ll ever wear.OFFICIAL WADER of WFFC - iWader were selected as official waders of the 39th WORLD FLY FISHING CHAMPIONSHIP for its high quality and approved by over 1,000 professional fly anglers. The official badge sits on the chest.COMFORT & DURABILITY - iWader stockingfoot wader equipped with 3.5mm neoprene socks and corrosion-free gravel guards, more comfortable and flexible on your feet, reinforced knee protection on high impact sections for increased durability.PERFORMANCE - Perfect for 4 seasons. iWader fly fishing waders is insulated and protected with ultra-elastic & 100% waterproof fabric,these waders are able to perform well at any season and anywhere.BUY WITH CONFIDENCE - If your waders leak in the first 45 days of ownership, you may return it to us for a replacement of the same model and size. If your waders leak within the first year of ownership, we'll repair it at no charge.