Like their namesakes, Crocs have been around forever. The instep strap is replaceable, and an additional tab holds the front opening down, but otherwise they remain unchanged.The fitted design and durable, waterproof fabrics are as effective now as ever.Features Waterproof Breathable Abrasion-Resistant Windproof Laminated Construction Durable BioThane Instep Strap Abrasion-Resistant Cordura at Inner Leg and Boot Abrasion-Resistant Lower Boot Lined with Packcloth Larger Circumference Accommodates Plastic Mountaineering Boots Double Stitched Front Closure Reinforced Boot Lace Hooks Hook/Loop Front Closure Buckle Top Closure Specs Fabric: GORE-TEX 3L 100% nylon 70D plain weave leg panel Cordura 2L 100% nylon 1000D woven foot panel Weight: 10.2oz / 289g