On account of knee issues, I started riding with flat pedals last year, and rode the CTR with Patagonia Drifter A/C Gore-Tex hiking shoes on cheap Wellgo B102s. I never got wet feet from external or internal (sweat) water sources, and don't remember slipping off the pedals. My only issue with them was that a couple of months after the CTR, a couple of the lugs broke off, giving me a grand total of 3 months of use before lug-failure. I still wear them, though, and haven't had any other issues besides the fact that my laces are frayed, because I suck at tying them. Velcro.