ALPINESTARS TRACK V2 Leather Pant Men’s Motorcycle/Motorbike All Year Category : CUSTOM RIDING LEATHER PANTS Construction: Main chassis constructed from 1.3mm premium bovine leather. Accordion leather stretch zones above the knee offer improved flexibility. Extended high rear waist construction provides greater overlap with the riding jacket. Large stretch panels on calf area for improved fit and feel. Pre-curved leg construction helps prevent riding fatigue and aids performance fit. Key features: Waist circumference adjustment allows riders to tailor the fit. Waist connection zipper allows attachment to Alpinestars riding jackets. Internal mesh lining with stretch panel inserts work in conjunction with outer stretch zones for freedom of movement. Replaceable Sport knee sliders. Dynamic Friction Shield (DFS) offers excellent impact and abrasion resistance. External dual density TPU knee sliders are removable and replaceable.