The product that launched Kahtoola, the KTS Crampons feature our patented LeafSpringA(R) Flex Bar technology, a customizable fit and easy packability. They are the ultimate crampon for hiking and non-technical mountaineering in flexible footwear. Best Use: Hiking, backpacking, non-technical mountaineering Terrain: Rugged mountain trails, off-trail Conditions: Alpine Footwear: Hiking shoes and boots Product Details *Customizable Fit -Adjustable straps allow users to customize the fit to their favorite flexible footwear. *Independent Front/Rear Bindings -Allows tension to remain constant as the foot flexes. *Folding Heel Bail -Packs down smaller than any other hiking crampon. *Patented LeafSpringA(R) Flex Bar -A patented dual-layer stainless steel bar, backed by a lifetime guarantee, is specifically designed for use with flexible footwear, allowing users to move fast and light over non-technical terrain. Specs: a 10 spikes per foot a 1-inch spike length a Spike material: 4130 chromoly steel a Weight per pair: M/L (with Snow Release Skins) - 24.1 oz (684 g) a Pack size: 8 x 3.5 x 3.75 inches (98 in3) a Snow Release Skins (SRS) included a 3-year warranty