We love the soft material and thoughtful design of these packing Jocks. Made in Canada by a trans-owned company, these got great reviews from our testers!  The perfect Jock to wear every day for the use of a prosthesis Soft Packer. Also compatible with most Stand to Pee packers. Internal pocket for optimal support of your prosthesis.  OPENING3.80 cm (1.5 in) “O” opening to insert your prosthesis. MATERIALS94% Bamboo - 6% Spandex CARE INSTRUCTIONSWash in cold water. Max 30ºC (86ºF)Dry on low heat. Use a mild detergent. Do not rush. Do not use bleach.  Wash the underwear before wearing it. If you experience any irritation or discomfort, discontinue use immediately.