Model Bodysize Waist to shoulder waist circumference WAVE 1S AIR (specially developed for women) 155-165cm 37,5cm - 42cm 80-90cm (M) 90-100cm (L) WAVE 11 AIR 160-170cm 38cm - 45cm 80-90cm (M) 90-100cm (L) WAVE 12 AIR 170-185cm 41,5cm - 47cm 80-90cm (M) 90-100cm (L) WAVE 13 AIR 185-195cm 44cm - 51cm 80-90cm (M) 90-100cm (L) The DAINESE Wave 1S/11/12/13 offers the highest levels of protection, light weight, ergonomics, and ventilation distinguish this racing back protector developed with suggestions from competitive motorcycle racing’s greatest champions. Homologated to EN 1621.2 Standard Level 2, this back protector has rigid external corrugated plates on the back and shoulder blades for better impact energy distribution and a lightweight core made of aluminum honeycomb and Astrosorb. Ergonomics and riding comfort are guaranteed by the DAINESE Wave 1S/11/12/13 thanks to jointed pads, a patented lumbar support joint, the perforation of the structure, the use of breathable fabrics, and ample volume adjustment possibilities. Material Back protector core in aluminium Honeycomb frame and Crash absorb® External polypropylene perforated and corrugated plates Backprotector with perimetral double density thermoformed support structure Performance shock Back protector certified Cat. II - EN 1621.2/2014 lev.2 standard Ergonomics Lumbar joint Liner in thermoformed polyethylene foam Temperature adjustment External perforated pads Liner inside back in polyester mesh fabric Lumbar strip liner and braces in double jersey General features Removable, adjustable straps Lumbar band with double adjustment strap Lumbar joint The lumbar joint guarantees full lateral flexure while ensuring that the protector remains in the correct position and maintains its protective efficacy.