Overview Reviews Product Description Designed with hot drinks in mind, the Flex Sip lid lets you enjoy your favorite brew or hot beverage leak-free. Just sip, twist, and go. Product Videos Custom Field Product Reviews Write a Review Write a Review × Hydro Flask Wide Mouth Flex Sip Lid - Black Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *