Pertex 6 shell and 'AquaTherm' pile lining. A lightweight short, compact alternative to the Mountain Jacket for climbing, skiing, caving, cycling, canoeing and year round casual use. Packs away small and light. Any Buffalo Jacket to be worn over a Buffalo Shirt, should be the size above the Shirt.Please note that some items from Buffalo are made to order. Our delivery estimate for these items is currently 35 to 40 working days but during busy periods it may take a little longer for items to reach you.