I received the part February 25 and installed it. I ordered a 13 and got one shoe in a 12 and one in a 13 (check the printing on the inside of the ankle straps). These are exceptionally comfortable. I have never found a shoe that doesn?t fit in a size 10. Fits face perfectly - highly recommend I was happy to find this pair, as I like the webbing (strap) color and design more than the current standard options on the Chacos website. so if you need top notch isolation, look elsewhere. I have used at least seven brands of clothes moth traps available here on Amazon. Also, very soft, warm with or w/o socks, well-made, durable bottoms. No surprise it failed.