“I don't know how they do it - but they did it! I was looking for a stretchy band that wouldn't slip/slide, but didn't feel uncomfortable or tight. This is the band! I did the sizing before I bought it with their handy printable. It fits nice and snug - no sliding around, like my other bands - but it doesn't squeeze at all. It feels like I'm not wearing anything sometimes! I wear it while I'm awake and asleep, and it's perfect for both. Thanks Solace Bands!”