With their bombproof construction and additional circumference to accommodate extra layering and plastic boots, the Outdoor Research Expedition Crocodile Gaiters are ideal for mountaineers looking for extra durability and room in their gaiters.Features: Taslan GoreTex upper is breathable, waterproof, windproof, durable, lightweight and compressible. Upper inner leg is lined with 1000-denier Cordura for extra durabability against wear and tear. 1000-denier Cordura lower is lined with packcloth to protect against abrasion and abusive crampons. Change the amount of overlap of the Velcro front and you can change the circumference of the gaiters to fit different sized boots. Field replaceable nylon supported rubber instep strap is super-durable and keeps your Crocs' in place. Specifications: Weight per pair: 14 ounces. Material: Taslan GoreTex. Secondary fabric: 1000-denier Cordura - 8 oz nylon packcloth. Specifications based on size Large. Sizing: Gaiter size-td S-td M-td L-td XL-td XXL-td -tr US Men's-td 4-7-td 6-9-td 8-11-td 10-13-td 12-15-td -tr Euro Men's-td 35-40-td 38-42-td 41-45-td 43-47-td 46-50-td -tr US Women's-td 5-7-td 7-9-td 9-12-td -tr Euro Women's-td 35-37-td 37-39-td 39-42-td -tr -table-td-tr-table