Aetrex UK to US size chart:

Meet our most popular sneakers with arch support: the Carly! These lightweight kicks provides the comfort you need for long periods on your feet. With pressure relief cushioning, a padded heel, and stretchy knit material, the Carly will keep you comfortable on your most active days.

• The Aetrex Orthotic System is Built-In to every pair:
• Our insole features arch support that helps to stabilize your body, align your feet and relieve common foot pain (ie.plantar fasciitis, heel pain & arch pain)
• Our insole features UltraSky™ cushioning to provide pressure relief & comfort
• Our insole is lined with microfiber treated with antimicrobial technology to help fight every day odors