Alpinestars GP Plus R V4 Rideknit Leather Jacket - Black BlackAlpinestars Gp Plus R V4 Rideknit Leather Jacket The GP Plus R v4 RIDEKNIT Leather Jacket is optimized for superior freedom of movement and rider comfort, and features extensive race derived features and materials, including a dedicated Sport fit with pre curved arms for maximum riding performance, and race proven protection on the shoulders and elbows. Feature: Extensive technical stretch panels under the arms, on the inner arms, and around the neck