Oneill Mutant Jacket

Removable / reversible sleeves, in other words, you get two jackets and a vest for the money.
From the O'Riginals series. All products from O'Riginals are faded in colors, has clean lines and slightly longer fit.

"Firewall" lining. Meaning lining is adjusted to body functions. Where you get cold the lining is thicker while on the back and under arm pit lighter and breathing.