Granite, sandstone, singletrack ... stay warm, dry and flexible in stretchy R1 fleece. The high/low interior grid design breathes, moves moisture, and insulates, alone or under a shell; the jersey microfiber exterior keeps layering friction-free. The pullover has R.5 stretch panels at the wrists, hem and under the arms to decrease bulk and increase breathability. Glued-in elastic at the cuffs and the glued-in reverse-coil zipper on the stretch-mesh chest pocket further reduce bulk. Sized for next-to-skin performance, it's still roomy enough to accommodate a light base layer. The vest has an offset front zipper for chin comfort. The men's pants have a relaxed fit and a zippered rear pocket. The women's pants have an angled front zip pocket. All women's pieces have a contoured, feminine shape. Made in USA.