Stay refreshed on the go with the Hydro Flask 21 oz Standard Flex Straw Cap in Oat, a versatile insulated bottle designed for everyday hydration and adventure alike. Its soft Oat colour gives a clean, contemporary look, while the innovative straw lid makes sipping easy without removing the cap - ideal for commuting, workouts, or outdoor activities. 

• Material composition: 18/8 pro‑grade stainless steel with TempShield® double‑wall vacuum insulation keeps drinks cold up to 24 hours and hot up to 12 hours (cold drinks only with straw) 
  
• Leak‑proof Flex Straw Cap with flexible handle and easy‑one‑hand access for comfortable on‑the‑move hydration 
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• Slim, cup‑holder‑friendly design with a durable, slip‑free powder coat finish