I usually wear 26cm shoes, but since these are slippers with Velcro closures, I thought I might be able to wear the 23.0-25.0cm size. However, they were too short, so I'm putting them up for sale. The width is adjustable with Velcro, so they should be fine even for wide feet. The following is an excerpt from the official website (https://www.al-phax.co.jp/slippers/130-massageslippers/643-509608): Product Name: Gout Arch Fumippa ・Product Description Easy to wear, take care of your bunions at home. Develop healthy feet during your time at home! The unevenness of the insole strengthens your toe strength and trains the longitudinal and transverse arches of your feet. ・Toe Exercise Grasp the protrusions with every step to increase toe strength. ・Flat Foot Measures with Foot Arch The arch of the foot is supported with a stimulation like stepping on a bamboo stick. ・Hallux and Little Toe are Comfortable The hole shape makes the protruding hallux comfortable. ・Velcro Belt Adjustment Fits those who don't fit the size of slippers, such as high insteps, wide feet, and bunions. Developed in collaboration with foot specialists Kiyoshi Yoshida, Representative Director of "Ashimomi Juku Co., Ltd." While holding self-care classes for foot massage "Ashimomi Juku" nationwide, he is also promoting it overseas, such as in Australia and Germany. In addition, he is actively training instructors of foot massage health methods in the Ashimomi Juku certified professional training course. *As a substitute for acupressure Suitable Size/Weight (approx.) 23.0-25.0cm / 100g per foot Material Polyester, others Made in China Price 2,750 (tax included)