Alpinestars Youth Bionic Action Knee Guards YCRF_mc_mx_boots and the hydratex|Lite waterproofing keeps

and the hydratex|Lite waterproofing keeps water out

challenge the heat

A 100% synthetic lubricant

The Michelin® Trial Light (front and rear) is six percent lighter than the Michelin® Trial Competition (front and rear)

air springs

Alpinestars Youth Bionic Action Knee Guards YCRF_mc_mx_boots and the hydratex|Lite waterproofing keepsFEATURES Robust protective structures and impact absorption padding for optimum levels of protection Highly ergonomic design improves streamlining while providing crucial protection for MX and off road riding Asymmetrical and lightweight ergonomic panel construction offers extended protection surfaces to reduce rotation Double strap closure system on a knee protectors specially designed to offer more comfort while keeping the protector in position