Flip it and sip it. Flip it and sip it with the Hydro Flask 21 oz Standard Mouth Bottle with Flex Straw Cap. With a comfortable, flexible handle, the closeable, leakproof straw cap is easy to open and close with one hand for on-demand hydration. Double-wall insulation keeps drinks cold for up to 24 hours for cool refreshment. The slim design fits most cup holders and is dishwasher safe.
Leak-resistant, closable lid
Hot stays hot.
Cold stays cold.
TempShield double-wall vacuum insulation
Strong ergonomic handle
Fits most cupholders
Won't retain odor or leftover flavor
Durable stainless steel
Compatible with size Medium Press-In accessories
BPA-Free