Kris Holm Percussion Armor is the first armor designed to meet the specific demands of unicyclists. Select features: Full coverage to both the front and back of the leg Leg/calf/knee abrasion patches to resist tire abrasion Vented, flexible knees are low profile to avoid the unicycle fork crown Semi-soft knee padding extends high above the knee and resists sagging Durable 1100 denier Ballistics Nylon Lightweight, cool and well-vented behind the knee Quick and easy to take on/off Machine-washable in front-load washer Weight: 650 g (size L) Warning: use of this equipment does not guarantee protection from injury.  Always ride within your limits!