Dainese Manis Back Protector The Manis Back Protector offers CE Level 2 Protection and the most advanced design characterizes this innovative back protector that breaks the classic design pattern and sets new ergonomic standards. Innovative construction solutions give the protector 3 more degrees of freedom than protectors of the past, thus allowing it to closely replicate all the shapes of the human back in typical motorcycle racing positions. The protector is capable of extending or retracting by bending, in this way following the movements of the torso. It is also able to bend and twist to follow the lateral bending movements of the body. The composite sandwich is the result of Dainese's 30 years of experience in the design of back protectors, the external plates with controlled elastic return movement are made of polypropylene and coupled to the Crash Absorb. A final layer of comfort material ensures precise coupling with the surface anatomy of the back. The protector is characterized by large perforations and very small surfaces in contact with the body to provide maximum thermal comfort, while the lightweight design completes the design harmony of this revolutionary back protection system. Protection Back protector certified according to the standard EN1621.2/2003 ( Level 2 ) Articulated external plates with controlled mobility, made of polypropylene with perforated and corrugated structure. Inner core in perforated Crash absorb Localized comfort padding Ergonomics and Comfort Back protector with 4 degrees of freedom 1 - Longitudinal stretch 2 - Longitudinal bending 3 - Torsion 4 - Lateral bending controlled by special tensioners External perforated plates Crash Absorb perforated absorption material Reduced contact area Sizing Sizing is dependent on both height and chest circumference. Height is measured from your shoulders to your natural waist, which will determine which Type is necessary. Chest circumference is measured at the widest point around your chest, usually just under the arm pits. Shoulder to waist length determines Type Type 49 14.75-16.5 (37.5cm-42cm) Type 55 16.15-17.75 (41cm - 45cm) Type 59 17.3-18.9 (44cm-48cm) Type 65 18.5-20.5 (47cm-52cm) Chest circumference determines Size Size SM 37 (94cm) Size MD 39.4 (100cm) Size LG 41.7 (106cm) Size XL 43.4 (110cm) Other Adjustable and removable straps Adjustable lumbar strip with double Velcro Note Depending on size, Back Protector will have more or fewer segments than image shown.