comfort and shock absorption

The Nucleon KR-H is anatomically profiled to allow freedom of movement while riding and can be worn under leather racing suits

and control in hot weather riding

the textile counterpart to the Alpinestars iconic Dyno Leather jacket

and superior ventilation - making it the ultimate choice for championship-level performance

techstar knif pants orange black ucla blue Size:38 comfort and shock absorptionAll new for 2026, the Techstar Knif Pants are Alpinestars' premier off road competition trousers, engineered for advanced level performance on all terrain. The lightweight, multi material construction features durable 600D polyfabric and stretch ripstop with an innovative 3D Babel knee and SX2 magnetic buckle for maximum mobility. This athletic race fit delivers superior ventilation and a second skin feel, ensuring ultimate comfort and freedom of