The comfort level is beyond words. The cheaper HyperX Revolver sounds so much better than this. In fact, on concrete, my feet/toes were dusted in sand. The wool interior makes them breathable - I made the mistake of cheaping out and getting a synthetic interior once and my feet starting sweating IMMEDIATELY. These fits like corset, shapes your waist and actually works like the sauna waist sauna trainers. Love it so cute it was a gift the toddler loved it so happy. I bought this product originally for myself in a larger size and it was too big but my step dad was interested in getting one so I ordered this medium for him and he does wear it a lot. The superior dynamics of the Sennheiser?s aides in the ability to replicate a more convincing sense of space between instruments. I LOVE this speaker! The sponge is better than some of the "grown-up" sponges I use to wash dishes.