Personally the nylon sport loops are my preference for workouts. They’ll get wet from sweat and will need to be washed often. I have about 40 of them (mostly cheap knockoffs from AliExpress - a couple bucks each) so I always keep a couple extra clean ones in my gym bag to switch out after a workout. They’re lightweight, secure, and very very comfortable. Also very easy to adjust as the size of your wrist changes as you get hotter working out.
Personally the nylon sport loops are my preference for workouts. They’ll get wet from sweat and will need to be washed often. I have about 40 of them (mostly cheap knockoffs from AliExpress - a couple bucks each) so I always keep a couple extra clean ones in my gym bag to switch out after a workout. They’re lightweight, secure, and very very comfortable. Also very easy to adjust as the size of your wrist changes as you get hotter working out.