The Landing Zone™ Elbow/Forearm Guards feature a two-piece, articulating design for maximum protection along with a full range of motion. Ventilated plastic and perforated foam to help keep you cool. "Set-and-forget" strap design.
Circumference of fully flexed bicep:
S/M: up to 14"
Buy RockGardn Landing Zone Elbow Guards from Chain Reaction Cycles the world's largest online bicycle store.