Also, maybe I shouldve gone a size up to fit thicker woolly socks underneath - these are no more breathable than any other welly, and good wool socks help with that, as well as the warmth. Sizing seems off and the fabric cheap feeling. There is random hum and I have also picked up a local radio station with them (very quiet though). This is a great replacement for the original if you just want to use it for sound mixing/monitoring, or just listening to music. They require a little effort for a kid to put on properly, but its all worth it. That might not effect everyone though. It has 6 drivers (3 per channel) and each driver has its own amplifier. I use those buds almost daily for several hours. Purchased these for my son’s wedding and after returning the first 6 six pairs of shoes I tried, I found my shoe in this padded and ultra soft-strapped shoe. I only recommend the styles with the thick sole; the thinner-soled flip flops actually hurt my feet.