Jacket ALPINESTARS GP Plus R V4 Rideknit Leather black / white. It is optimized for superior freedom of movement and rider comfort, and features extensive race-derived features and materials, including a unique 'Sport' fit with pre-curved arms for maximum riding performance and race-proven protection. at the shoulders and elbows.

MAIN CHARACTERISTICS

• Alpinestars' composite stretch technology, A-CS® Plus, stretch panels in the torso for exceptional breathability, comfort and freedom of movement, as well as offering a lighter weight and lower profile than a traditional leather accordion panel (the A- CS® Plus panels are approximately 9% lighter than leather panels). Another key advantage of using A-CS® Plus
• is its superior stretch performance; A-CS® Plus has approximately 30% elongation and offers an increase in tear strength of 300 % compared to HRSF (hyper resilient stretch fiber) and an increase in shear strength of 600 % compared to leather.
• 2,1,3 mm 'Race' grade leather construction for an optimal combination of abrasion resistance and comfort.
• RIDEKNIT® engineered inner arms; RIDEKNIT® combines high abrasion and tear resistance with high flexibility, comfort and mechanical stretch, while offering superior comfort and high levels of breathability.
• Extensive technical stretch panels under the arms, on the inner arms and around the neck for an optimized fit.
• Dual density DFS shoulders for superior friction control.
• GP Lite elbow guard for impact protection in a key area.
• Nucleon Flex Plus shoulder armor for superior impact protection.
• Tech-Air® 5 and Tech-Air® 3 ready.
• According to European legislation, CE marking is a conformity requirement for the marketing of this product. The following standards apply: Fully CE-certified riding garment according to CE standard - Category II EN17092-3: 2020 - Class AA.
• Perforation zones located on chest and sides for maximum airflow.
• Stretch under arms and inner arms for optimized athletic fit.
• Stretchy, soft-touch, ergonomic collar for superior rider comfort.
• Hook-and-loop neck closure with large built-in flap for secure closure.
• Ergonomic hook and loop cuffs with zippered forearm sleeve for ease of use.
• Two external zippered side pockets for convenient and secure storage.
• Comfortable mesh inner lining with pockets to accommodate a back protector or split chest protector.
• Longer cutout in back for greater coverage in the riding position.
• 3/4 zipper at waist for secure connection to Alpinestars pants. 
• Adjustable hook and loop waist for optimized fit.
• Mesh lining to optimize