Overview Reviews Product Description Made with durable nylon bristles, the straw brush easily cleans inside our straws, and the detail cleaner fits into the crevices of caps and lids. Works with all Hydro Flask straws and lids. Product Videos Custom Field Product Reviews Write a Review Write a Review × Hydro Flask Straw Cleaning Set Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *