They might absorb some sweat too, but at least its open-back and cloth, so theyre breathable. Is heavy duty metal, easy to mount, and durable (plus it looks great). Very sad. Another good thing is that if you have a skin (vinyl skin) on your AirPods, then the case won?t interfere with the looks. its green energy, and also has a bright green light on the power switch, that from reading the reviews, i turned on and didnt touch again. The sizing is accurate so please check the size of your bike beforehand. I received these rails for my Honda Odyessy 2008 and after looking at the instructions, then watching 2 Youtube videos I still had an issue installing, until I realized this. I really like these shoes a great deal. There are two separate spots for the cord to disconnect itself incase you forgetfully pull away or someone trips over the cord, etc. So I bought this second rack just to clean things up in the kitchen.