Ice Flow Flip Straw Tumbler - 40oz Size:One Size The Speed Lock+ adjustment system

The Speed Lock+ adjustment system allows you shorten it to backpack size in a flash

Nine points of adjustment offer a customized fit

Adjustable sternum straps

Woven fabrication on select colors (Faded Denim

Ice Flow Flip Straw Tumbler - 40oz Size:One Size The Speed Lock+ adjustment systemThese bold, colorful tumblers are made to keep you hydrated in a fully functional style. Ideal for car commutes or workouts at home, it has a built in flip straw for easy and effortless sipping. Snap it shut and the double wall vacuum insulation will keep your drink extra cold for hours. To help you live a sustainable lifestyle, the IceFlow Tumbler is made in part from recycled plastics sourced from discarded fishing nets, sparing our waters of