Mons Royale Hold ‘em Shorty Boxer. First on. Last off. A performance merino boxer with Hold ‘em fit for superior support. Mons’ high performance merino underwear provides athletic support and natural temperature regulation with bold, contemporary style.Merino Air-Con is ultra-lite and ultra breathable for year round use.Merino Air-Con 140Mons slim fitDouble layer in-leg gusset for strength and comfortNo side seams for added comfortSignature wide Mons Royale waistbandShort-thigh length.