TRACTION: 16 Replaceable, ultra-durable push-through carbide studs strategically located to grip the road or the trail. FIT: STRETCH FIT: Durable, proprietary, adjustable strap for a secure, custom fit-from running shoes to outdoor boots. Adjusts from women's size 6 up to men's 14. SPECS: 4.5 oz per pair SIZES: One size fits most (Women's 6 - Men's 14)