Boxercraft Women's Cotton Flannel Check Sleep Short Boxer 100% Cotton The Boxercraft Flannel Bitty Boxer is made of 4 oz 100% double-brushed cotton flannel. It has a 1" inseam and a false fly with buttons. This is a shorty short - junior fit. Please use the sizing chart in the pictures to get the best fit Machine wash warm with like colors and low heat dry. For best results turn inside out before washing.