FiveFingers are designed around the foot's measurement in inches. There is no real 100% translation between your US size and FiveFingers size. In order to find the right size, please measure both feet from heel to tip of longest toe with a ruler in inches. Take the longest measurement for your longest foot and refer to our . Please click for a video about how Vibram shoes should fit. Catch eyes even at night when you slip into the night-ready performance of the SeeYa LS Night from Vibram FiveFingers. A night-specific version of the SeeYa LS, SKU# 8187686. Built specifically to promote a barefoot-like experience. Ideal for night-time running and fitness activities. Fit Tips: 1. With loosened laces and tongue pulled out, insert foot, slipping each toe into the individual toe pockets. It may work best to begin with the big toe. 2. After each toe is in place, slip heel in and adjust until it is snuggly in place. 3. Adjust laces to your preferred tightness. Wiggle toes and adjust strap until you find the ideal fit. Breathable mesh and lightweight microsuede upper materials promote a snug, glove-like fit. Reflective upper elements for enhanced visibility in low-light conditions. 2 mm, microfiber footbed with Dri-Lex antimicrobial technology for a great in-shoe environment. Stitched-in polyurethane insole keeps foot protected during longer runs. Soft TPU midsole helps reduce overall thickness and weight, while heightening flexibility. Strategically-placed Vibram TC-1 Dura rubber provides long-lasting wear at a lighter weight. Outsole boasts a minimal thickness to optimize underfoot feel and flexibility. Maximum Outsole Thickness: 3.5 mm ; Imported. Measurements: ; Weight: 5 oz ; Product measurements were taken using size 41 (US Women's 9-9.5), width B - Medium. Please note that measurements may vary by size.