Nucleon KR-2i Back Protector Insert Size:M Newly developed rubber compound sole

Newly developed rubber compound sole with textured grip patterning for excellent performance against slipping

For general all around performance

Tough nylon carcass and high dimpled knobs work well in a variety of terrain

4 or 6 ply rated

Nucleon KR-2i Back Protector Insert Size:M Newly developed rubber compound soleALPINESTARS SIZING CHART The NUCLEON KR 2i soft back protector is quick and convenient to insert and fit unobtrusively within a rider's jacket or suit for the ultimate in comfort and safety protection. NUCLEON KR 2i Back Protector Insert is CE certified Level 2 (EN1621 2: 2014) Lightweight, flexible PU injected impact foam Contoured for anatomical and adaptive fit Perforated for breathability and comfort Channel ventilation system for optimized