21oz (621mL) Standard Mouth Flex Cap Travel Tumblers Medium boot is not compatible

Medium boot is not compatible with 32 oz or 40 oz Lightweight Wide Mouth Trail Series bottles

64 oz Volume 1

and the flexible straw is easy to sip any which way

18L Mouth Diameter 5

21oz (621mL) Standard Mouth Flex Cap Travel Tumblers Medium boot is not compatibleYour daily sip. Stainless steel and cupholder compatible, the reusable, refillable 21 oz Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to 12 hours, and holds enough hydration for hours of fun. 24 hours cold, 12 hours hot TempShield double wall vacuum insulation Leakproof when closed Pure taste, no flavour transfer Durable stainless steel Fits most cupholders BPA Free Dishwasher safe Not for use on a