Richer Poorer Underwear Size Chart The perfect everyday pair of cotton underwear. The Thurston boxer brief is slim fitting with a snug pouch and 3" inseam length. Designed to keep you comfortable and looking good throughout your day. Features: - Breathable, ringspun cotton blend - Naturally odor resistant - Perfect stretch - 3" Inseam - Soft-flex waistband - Flat locked seams - Front pouch closure