Note: the Long fits up to 6'6" and has a girth wider than the regular... hence, its a big bag... on one hand, a western bag might feel like spandex in comparison, on the other, plenty of room to wear those extra layers or stow the bottles and socks in the toe box. ... Unless you are 6'1" you will not fill this bag... and might induce cold spots. not quite the greatest sales pitch but just being honest...