So I didn't actually buy the gray flip flops online; I got in store on sale. I've had these for a couple of months now so I don't remember what size I got, but I think 8 (or 8 1/2 if they have that size) since that's my size. They've ripped a little bit on the front edges, but I think that's just because I'm clumsy and trip easily. They're fine for chilling in the house and walking down the block to the dollar store. They're not fine if you're on your feet for a while. So cleaning in the house for a few hours, walking for a while...this might make your feet hurt, especially if your feet need support, which mine do. These have none; they're simple chanclas. If you just need something affordable and of decent quality and for casual use, get these. These are much cuter and simpler than Crocs, for example, although Crocs have better support. So if you're looking for all of that plus support, look elsewhere. If not, it's an alright buy.