The Alpinestars Nucleon KR-3 Back Protector in XL is designed to provide flexible, breathable spinal protection with an ergonomic lattice structure. Its back shell plate uses a high-performance polymeric material blend for flexibility and weight-saving properties, while soft viscoelastic polyurethane foam helps absorb impacts. The single-injected lattice structure promotes airflow and allows freedom of movement in riding positions.
The protector features a convex central hard-shell design for enhanced spinal-area protection, horizontal flex grooves for an adaptive fit, and Nucleon polyurethane foam along the central spine area for additional impact absorption. An adjustable rib protector adds side protection, while shoulder-blade padding extensions help guard the acromion bones.
A waist adjustment, slim vented kidney belt, and adjustable detachable elastic shoulder straps with a snap-fit system support a customized, stable fit. The Alpinestars Nucleon KR-3 is compatible with Nucleon KR-C and Nucleon KR-TB protectors. Manufacturer part number: 6504718-13-XL. Vendor part number: 6504718-13-XL.
Features:
- Lattice Structure: Single-injected shell made from a high-performance polymeric material blend for flexibility and weight-saving properties.
- Impact Absorption: Soft viscoelastic polyurethane foam and Nucleon polyurethane foam in the central spine area help absorb impacts.
- Spinal Protection: Convex central hard-shell design provides protection for the spinal area.
- Breathable Design: Lattice construction supports airflow and breathability.
- Adaptive Fit: Horizontal flex grooves allow flexibility in riding positions.
- Side Protection: Adjustable rib protector adds protection along the sides.
- Shoulder Protection: Padding extensions help guard the acromion bones.
- Custom Fit: Waist adjustment and a slim, vented kidney belt support fit customization and position stability.
- Shoulder Straps: Adjustable, detachable elastic straps use a snap-fit system.
- Compatibility: Compatible with Nucleon KR-C and Nucleon KR-TB protectors.