I go to a noisy gym and my big problem with my other headphones was noise cancellation. Two different places on the product page say that it does humidity. 8A. Nobody sitting on the same chair lift could hear what I was listening to, at 50% volume. Just cozy Comfy. I have a real problem with high arches and instep, and shoes always hurt my feet. Unless you somehow have a USB-C Apple wall plug. I use it on the back of my Mercedes GL450. Keep in mind though that just because you are sweating doesnt necessarily mean you are going to get trimmer. Very happy with the product.