661 Comp AM 2 elbow - 

 YOUTH - unisize.

 Introducing the all new Comp AM series. COMP AM utilizes supple flex tech rubber that articulates with you while you ride, making these pads ideal for all mountain and gravity rides. The COMP AM is an affordable, high-impact option with durable nylon materials and articulated ergonomic fit.

Features
Brand new chassis
Internal flex tech rubber knee protection is comfortable and articulates with you
Pre-curved chassis with abrasion resistance and durable ballistic nylon
Stays secure with hook and loop closures