Cleaning light colored aw sports loop

[Lakris]

I've tried to get my pink aw band nice and clean again but this far I haven't been successful. How do you wash a light colored band to get it sparkling new and bright again?
I think the one I have is the sports loop, made of nylon, polyester and elastan with velcro.

 

[SierraVista]

I would wash it using warm water and a small amount of liquid laundry detergent. You can scrub it with a soft toothbrush to get out deep stains or dirt.