SPARK R&D DRex ST Pro Black Hardboot Crampons (DR5111-par)

7075 Aluminum: Manufactured with 7075 aluminum to be strong, light, and thinner for minimal drag; ST Tech: Overmolded ST Axle allows for a smooth and durable touring experience; Nesting design saves valuable space in the pack; Easy Installation: Install and remove on the fly by sliding sideways into and out of the crampon claw mounts; Made for the Steeps: Stack up the crampon riser blocks to keep the full depth of teeth in the snow when using heel risers