Bike rack is very sturdy. Not a problem, I sent them back and got an 8. The ball of my foot & my heel rests on the bottom of the sole. In addition to all of this, I have washed them several times and they have held up well. The key is to not start out too tight but gradually as to not have any health issues and allow the waist to cinch effortlessly without any hassle and this product does it. it will soak the water on car easily and leaves it with that wax shine the smell is also goodAfter that for better results i use "Turtle Wax 53409 Hybrid Solutions Ceramic Spray Coating" just for more protection with that any drop of birds or road dirt or any other containments can be easily cleaned later I dont understand why they dont make the tie dye like their other colored design Crocs that dont fade. Now I know why people who own them swear by them and I wish that I hadnt held out for so long. Now im annoyed i have to gamble to find another seller who actually sells Legit AKG headphones. Flimsy, weak built, no solid gripping bottom, do uts real easy to slip on tile.