Alpinestars Nucleon KR-2i Back Protector Insert Alpinestars developed the "Nucleon KR-2i" represents the evolution of the Bio Armor Back Protector Insert. The Italian brand has thoroughly reviewed its back for its jackets and jackets with ergonomic structure, enhanced ventilation, reduced weight and a new resistance levels. With the CE level 2 certification, back Nucleon KR-2i provides a level of protection thanks to its exceptional advanced materials. Nucleon KR-2i is designed to fit the compartment provided for this purpose in the back of the jackets in leather and fabric Alpinestars latest generation. Nucleon KR-2i ensures greater security without compromising your comfort.

Alpinestars   Nucleon KR-2i   Back Protector:

The back protector is   tested in accordance with (EN 1621-2 : 2014).  Level 2  The safety is on   the latest back protector standard.
EXTREMELY EASY, flexible and Ergonomically for an optimized anatomical fit. Through strategically placed holes provides a the protector optimal cooling, The Nucleon KR-2i back protector is quickly and convenient einzusetzten and fits perfectly in the latest range of Alpinestars Leather Suits, Leather And Textile Jackets, The Rückrenschutz was designed by first-class protection to offer.

This new back protector Alpinestars replaced the old familiar Bio Armor.

Measurements of the back protectors are below

Size S: H.38 x W.25 cm  womens sizes  up to euro 40 please email if unsure
Size M: H.42 cm x L.25 cm  mens sizes euro 46-50
Size L : H.48 cm x L.26 cm mens euro sizes 52-64