Mavic39s ksyrium elite convertible jacket is made from ride wick warm fabric which has a very soft feel and provides wind protection and breathability thanks to a fine three layer membrane with high stretch designed with ergonomic and roomier cut lines to enhance motion and a wide elastic on the waist to hold your body the ksyrium elite convertible jacket extremely comfortable to wear zippered inset sleeve construction allows sleeves to be removed for conversion into a gilet making the jac