Features LeafspringA(R) Flexbar Technology - When used with flexible footwear, our unique, patented flex bar system moves with the foot to ensure a wide range of motion. 10 Independent 3/4 Inch Long Chromoly Steel Spikes - Aggressive, strategically placed spikes provide a very stable platform for walking, while tearing deep into hard ice and snow. Independent Buckle Closures - Simple to use buckle closures at the front and rear of the crampon work independently, increasing range of motion by allowing the foot and ankle to move separately. Lightweight, Replaceable Snow Release Skins - These allow the snow buildup that often comes with warmer temperatures to clear itself from the bottom of the crampon. Tote sack sold separately Specifications Weight (pair): (XS) 23.2 oz / 658 g (Reg) 23.6 oz / 670 g (XL) 24.7 oz / 700 g Packed Size: 9 x 3.5 x 5 in / 153 in^3 23 cm x 9 cm x 13 cm / 2691 cm^3 Spikes Length: 0.75 inch / 2 cm 10 spikes per foot Materials Spikes: 4130 chromoly steel with non-stick coating LeafSpringA(R) Flex Bar: Patented dual-layer stainless steel Binding: Cold-resistant nylon hardware, polyester webbing Snow release skins: Reinforced neoprene