Alpinestars SP-1 Leather Jacket Motorcycle Jackets - Details:
- Durable 1.3 mm premium leather construction with flexible leather accordion stretch panels on the elbows and upper arms for contoured fit and comfort
- Chest pad and back compartments with advanced poly-foam padding (Alpinestars Nucleon chest and back protection available as accessory upgrade).
- Strategically placed stretch poly-textile panels on underarms, torso and rear shoulder helps movement and comfort on the bike.
- Shoulder protection features over-molded advanced Thermoplastic Polyurethane (TPU) guard layered under the outer fabric for optimized levels of protection and comfort.