The Chiller and Chiller Go combo set by Reduce is the mess-free, spill-proof kids cup solution for home or on the go. Chiller's spill-proof straw and comfy handle make it ideal for sipping at home, but we made it cupholder friendly for road trips too. Chiller Go is made for busy littles, with a fold-down, leak-proof straw lid and a removable handle for attaching to backpacks. Both tumblers feature our Soft Sit base, are vacuum insulated to keep drinks cold for 18 hours, and can be cleaned in the dishwasher. So now you can chill, because your life just got a little less messy.