The bottles with a scale line,this is effectively calculate the daily water consumption; Latest frosted surface process,make the water bottles feel better; Get refreshed Allcare sports bottle flip-top lids lets you take a quick drink while you run, workout or in the middle of the game 100% non-toxic and BPF-free made from high-quality durable Eastman Tritan co-polyester toxin free food grade plastic that you can hold up to tough conditions, pregnant women and children use them drinking waters Easy to carry and easy to use Allcare sports bottle included a convenient carrying lanyard handle that lets you wear your bottle on your wrist or attach it to your belt or bags