The Dyno Leather Jacket by Alpinestars is a modern take on a heritage design, blending premium leather with a regular fit for a look that's stylish on and off the bike. It features a detachable thermal vest for added performance and versatility. Constructed from 1.0-1.2 mm bovine leather, it offers an optimal balance of lightness, thinness, suppleness, and abrasion resistance. The dip-dyed leather process results in a natural finish, superior softness, and a comfortable feel against the skin. The detachable thermal vest is insulated with 80g at the front, providing effective warmth in cold weather.