The Techstar line offers the optimal blend of performance and durability. Engineered for advanced-level competition on all terrain, the pants' multi-material construction delivers the highest levels of ventilation and stretch for excellent freedom of movement. The lightweight, Techstar Knif Pants with their athletic race fit incorporate innovative features such as the SX2 magnetic closure buckle and a refined 3D Babel knee construction to significantly ramp up ventilation, flexibility, and freedom of movement. The pants are made of durable construction from 600D coated polyfabric and stretchable ripstop material, featuring 4-way stretch zones on the back, thighs and upper knees for optimal mobility. They have an ergonomic performance cut with a multi-panel design for maximum flexibility. Article: Alpinestars Techstar Knif Motocross Pants, blue-yellow, Size 40 for Men.