Navy blue "Propper" brand ODU shorts. "Battle Rip" 65% poly/35% cotton ripstop. Adjustable waist (if you're "on the line" between sizes, order larger than you need and adjust accordingly). Sorry - manufacturer sizes only go up to 2X. Persons needing 3X and larger pants are advised to order Propper trousers (item #F5205 available from Propper.com) and have them professionally altered.