Racing 4 Perf. leather motorcycle jacket, the Dainese sports jacket with a fitted athletic fit made of premium perforated Tutu cowhide for increased ventilation on hot days. Additional important details include the Nanofeel lining with a silver ion treatment to optimize temperature. The fit adjustment system on the hips, the S1 bi-elastic fabric sections and the Microelastic 2.0 leather inserts on the back and arms ensure grip, flexibility and freedom of movement while maintaining standard skin protection. The Dainese Racing 4 Perf. motorcycle jacket is equipped with a zipper at the hem, which allows it to be connected to motorcycle pants, and EN 1621.1-certified composite protectors at the elbows and shoulders, which are further enhanced by interchangeable external aluminum plates - a distinctive Dainese technology - designed to support and facilitate sliding in case of a fall, thus avoiding the dangerous risks of rolling on asphalt. Due to its special pockets, chest and back protectors can be inserted in the Racing 4 Perf. Characteristics 2 inner pockets 2 outer pockets Pocket for G1 and G2 back protector Reflective inserts Ergonomics Jacket-pants fastening system Microelastic 2.0 Neck adjustment Waist adjustment Main Materials S1 bielastic fabric Tutu cowhide leather Performance Shock Co-injected shoulder with aluminium insert Pocket for Double Chest protector Removable composite protectors certified to EN 1621.1 Standard on elbows Removable composite protectors certified to EN 1621.1 Standard on shoulders Replaceable aluminum plate on shoulder (1876165 kit shoulder sport aluminum) Temperature Breathable Nanofeel liner with Silver ion treatment Localized perforation