Size 40 which is a 9-9.5 Step into comfort with these vibrant Birkenstock sandals, featuring a striking green and yellow color scheme. Designed with a two-strap adjustable buckle system and a contoured footbed, these sandals offer a customizable fit and all-day comfort. Perfect for casual summer outings, their EVA construction ensures they are water-friendly and easy to clean. Good pre loved condition! Shoes have been wiped down and sanitized. Please review photos for details and review and flaws. The Birkenstock print on sole of shoe is pretty faded. Otherwise, good condition with lots of life left! Great for river trips, camping, poolside, vacation! Add a little color to your outfit! I ship next business day!