Good water bottle with straw?

brightning

For Father's Day, I wanted to get DH a new water bottle for the gym (along with a few sessions with a personal trainer to help him get a good routine since he's going to the gym frequently).

I prefer Sigg water bottles, but they don't have straws and he seems to like them. However, the reason he's getting a new one is that his old one keeps getting moldy. Is there such a thing as a good water bottle with a straw that won't get gross?

MeanMommyLady

Thermos makes some really great water bottles with straws.