Bought these after getting tired of bending over so much (sts) (yes, I guess I'm getting old). Seemed fairly heavy, definitely bulky. Bought the XL due to size 11.5 Burton boot, but seemed like I could maybe get the L. Held up pretty well in some pretty extreme conditions the 2 days I rode them, but I'd be interested to see how they hold up over time (since the lever in the back is plastic and there are a lot of moving parts). Ended up returning them. Due to Dogfunk's excellent customer service (and prices) I just purchased a new board from them and will be purchasing whatever replacement bindings I decide to get.