O2 Binding by Black Diamond

102789 Features: The O2's under-foot cable routing provides a progressive fluid flex and ensures there is no hinge-point or mechanical feel in the turn A unique toe box extends to each mounting hole and is stiffened in critical sections for maximum strength and responsiveness The Anti-Matter Skid Plate has a variable-height design and contours down from front to back for an angle that matches the sole of tele boots; this maximizes energy transfer by creating a large platform for the ball of the foot to reduce tip dive and rocker launch The yoke adds lateral and torsional support, while a solid wire on the heel offers maximum durability, resulting in an incredibly secure, highly responsive heel system The heel throw is easy to use with gloves and fits all tele-boot heel welts These are sold with your choice of compression-spring cartridges, Freeflex, MidStiff or Ridiculously Stiff to to match your style K2 insert compatible Climbing wires not included Specifications: Weight per pair: 3 lb 5 oz Releasable: no Free pivot: no Climbing bar included: no Fits boots: mondo sizes 235 to 260 (Small); mondo sizes 265 and up (Standard)Specifications based on MidStiff