Alpinestars: Ergonomically profiled to enable the integration of Alpinestars knee protection, the Racer Pants feature heavy poly-fabric reinforcement in the seat area and strategically positioned four-way stretch panels for freedom of movement, comfort and riding fit.• Fabric features water resistance treatment for additional wet weather performance.• Innovative, strategically positioned four-way stretch panels for freedom of movement, comfort and riding fit.• Mesh inserts on back of knee for breathability.• 3D knee and shin construction for fit and comfort.• 3D injection-molded TPR detailing, logos and tabs for durability.• Side waist adjustments for customized fit, plus hidden front zipper with snap closure.• Silicon finish on inner waist to prevent pant from sliding. 1. Multi-panel, ergonomically profiled pant for a performance fit and to allow for integration of knee protection. 2. Rear ribbed stretch panel on back and knees provides increased comfort and riding flexibility.3. Heavy poly-fabric reinforcement on the seat area (600D) and legs (600D) provides superior abrasion resistance.