In skiing and snowboarding, taking the Fall Line refers to the line down a mountain that is most directly downhill. Inspired by Line Miner and fusing the large ?eld of view from a rimless goggle, Fall Line XM is the latest addition to OakleyÆs ôLINE SERIESö of cylindrical style snow goggles. With a mid-sized ?t, Fall Line XM is optimized for a wide variety of faces and is engineered to ?t perfectly with most helmets. Designed with OakleyÆs Ridgelock Technology, changing lenses is quick and easy while still allowing for a complete lens seal to prevent harsh conditions from penetrating into your goggle.