Selling size S/M but i think they fit more like a medium, very roomy and soft. DETAILS (from website) RELAXED-FIT SHORTS WITH A RIBBED ELASTIC WAISTBAND. ULTRA-SOFT PLUSH RIB BREATHABLE AND MULTI-SEASONAL COLOR: CHARCOAL LUXE KNIT SIZING: X/S (0-2), S/M (4-6), M/L (8-10) MODEL IS 5'8" AND WEARING A SIZE X/S FABRIC: 48% POLYESTER, 36% COTTON, 12% VISCOSE, FABRIC: 4% SPANDEX CARE: HAND WASH COLD WITH LIKE COLORS. CARE: LAY FLAT TO DRY. JOAH BROWN | MADE IN LOS ANGELES