I really like the slim, and as Penny said, the metal doesn't go all around the band. It just slides on it so you can remove it to clean the band or to transfer it to another band that is color coordinated to your bike if you wish

I WILL say the slim is meant to fit snugly - and if it is the correct size then you can barely get it over your knuckles. Once it is actually on your wrist it isn't too tight at all.