Extremely comfortable everywhere on my skin, very snug band, but does not require an extender. I feel supported, have a rounded, non-uniboob shape. No bounce at all when jumping! Gore is very tall and doesn't technically tack at top, but I don't think it's supposed to hard tack there. It tacks comfortably up to the last inch at the top, but looks and feels comfortable. I'm wide shouldered, but narrow-shouldered people will enjoy the fit of the straps.