Colors:Black Inner material: sweat cloth Insole: Comfortable Breathable Insole Fabric: Stretch Lycra Sole material: rubber outsole Package included: 1 x Pair of Slippers -Breathable/Extra Wide/Cozy/Slip-on/Antiskid/Adjustable. -Suitable for all Spring, Summer and Fall, both men and women. -Applications: Diabetic Patients, Pregnant, Doctors, Soldiers, Nurses, Teachers, Adults, Home, Office, Airplane, Hospital, Indoor and Outdoor, these comfortable shoes will bring some help to swollen feet, flatfoot. -A wonderful Mother's Day/Father's Day/Thanksgiving Day/Christmas/Birthday/New Year/Festival gift for yourself, friends and families.Open Toe&Back Heel:Open toe design, provide your toes more free and comfortable space for improved wearing and walking comfort, prevent damage to the toes due to squeezing. Back heel design with enough wide and deep, provide for more comfortable wearing experience, ideal for wide, swollen or problematic feet. Mesh Upper&Rubber Sole:Mesh fabric cloth upper design, well improved the slippers inside breathable, keep your feet dry. The sole is made of high quality rubber, anti-slip and wear resistant, safe and secure for you to wear. Ergonomic sole design can well absorb shock, evenly distributed force. Reduce muscle fatigue, allow your feet to really relax. Adjustable Strap Closure:Forefoot straps are adjustable with hook and loop closures design, the range of adjustment is ideal for changes in the degree of swelling. Very convenient and give you an unprecedented comfort experience. KNITTED FABRIC: A combination design of open-toe and knitted fabric let you free from sweaty feet in spring, fall and even summer, breathable and comfortable. WEARING TIPS: If you are between sizes (3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5) or prefer to wear with socks, we sincere suggest you to choose 1 size up. There are also men's series available for machine washed and hand washed. You can choose to get both offor you and your friends or families.