1. Design of vent holes allows for free opening and closing, increg air circulation. 2. Soft and skin-friendly,Breathable, anti-dirt, anti-leakage and anti-allergic. 3. Cotton material, breathable, sweat-absorbing, elastic and comfortable to wear. Specification: Item Type: Male Urine Bag Size:(S M L ): Small size: Applicable waist circumference of 1 feet 6--2 feet 3 (approximately 52cm-76cm) Medium: Applicable waist circumference of 2 feet 1-2 feet 8 (about 69cm-92cm) Large: Applicable waist circumference 2 feet 6-3 feet 3 (approximately 86cm-109cm) Color:Black Packing Included: 1 Cotton underwear 1 Medical liquid silicone urinal 2 500ML thickened leg tied urine storage bag 1 ureter Applicable: Alzheimer's, diabetes, severe prostate and other men who can move freely but have urinary incontinence Usage: Wear it like underwear, put penis and testicles into urinal together, and ureter along pants. Under leg string, urine storage bag is tied to calf, so you can move and walk at will, and you won't be afraid of worrying about wet pants.AID IN INCONTINENCE: Urine bags suitable for continent people with mobility disorders, urinary frequency, post operations, have difficulty ambulating to bathroom, etc. Also great for traveling and camping. Urinary incontinence, Ill bedridden, elderly people who get up at night is not convenient. REUSABLE AND WASHABLE: Economical urine funnel , it is easy to clean and can be reusable Wide elastic band is used, elasticity is very good, which is not easy to be deformed and is suitable for different waist groups. EASY USE: Urine bags for men is reasonable design makes it very convenient and comfortable to use, Wear on the body like underpant, the ureter down the leg, urine bag tied on the lower leg. Can move and walk, and will not be afraid of wet pants because of the annoyance. LARGE STORAGE CAPACITY: Comes with two high quality thickening 500ml urine leg bags, urine rapidly drains from urinal into collection bag.The urine funnel has an air hole to allow the genitals to breathe, preventing harmful substance growth. HEALTHY AND COMFORTABLE: Urine collection bag made of high quality silicone material, high flexibility, sanitary and healthy. The inner lining of the urine funnel is non-woven, reduce skin friction.