Ixs carve protective jerseythe ixs carve protective jersey is designed for heavier terrain and competition. It features certified xmatter protective foam in areas where heavy impacts must be absorbed such as on the back and shoulders. A lighter nockout absorbent padding protects the chest and ribs allowing greater flexibility. A tight fit, an ergonomic cut and a high level of moisture wicking and breathability provide the highest level of comfort and safety. Ixs protectors meet european safety standard en1621 1 and en1621 2 respectively.features xmatter protective foam at back and shoulder nockout absorbent padding at chest and ribs lightweight, compact, moisture wicking and breathable flexzip, stretchable ykk zipper for increased ergonomic comfort buy ixs protection from chain reaction cycles, the world's largest online bike store.