NOTE: Due to manufacturer restrictions, this item cannot be shipped to addresses outside of Canada. The SEESOFT™ CE-Level 2 back protector insert is designed to absorb variable impacts without compromising on comfort, ventilation or freedom of movement. The highly impact-resistant blend of Nitrille and Polynorbornene rubber results in a memory foam that is multi-impact rated and CE certified to the highest level (EN 1621-2:2003 - level 2). In the case of severe angular impact, the individual Memory foam layers will shift relative to one another, resulting in impact dispersion over a larger effective surface area, and therefore minimizing the energy that is transmitted to the spine and back.By applying a multiple-layer concept, REV’IT! has developed a flexible back protector insert that performs consistently in all conditions. Use the chart below to determine which size back protector you need for your jacket. Size 03 - Compatible Jackets: Textile jackets size XS Ladies' textile jackets sizes 34-36 Ladies' leather jackets sizes 34-44 Men's leather jackets sizes 46-48 Size 04 - Compatible Jackets: Textile jackets sizes S-M Ladies' textile jackets sizes 38-44 Ladies' leather jackets sizes 46-48 Men's leather jackets sizes 50-54 Size 05 - Compatible Jackets: Textile jackets sizes L-XXL Ladies' textile jackets sizes 46-48 Men's leather jackets sizes 56-58 Size 06 - Compatible Jackets: Textile jackets size 3XL (XYL) - 6XL Men's leather jackets sizes 60-62