Insulated Bottle Hydro Flask 621 ml with Straw, OAT (S21CFS114)

Hydro Flask insulated bottle with straw, 621 ml capacity in OAT color is a stainless-steel vacuum-insulated water bottle designed to keep beverages at their intended temperature while offering convenient, spill-resistant sipping via an integrated straw lid. The double-wall construction and durable exterior make this bottle suitable for daily hydration, commuting, outdoor activities and gym sessions. Its 621 ml volume balances portability with sufficient capacity for extended use.

Advantages

The vacuum-insulated double-wall design reduces heat transfer to maintain cold or hot beverage temperatures for longer periods. The straw-equipped lid enables one-handed drinking and controlled flow without tilting the bottle, which is practical during movement or workouts. The stainless-steel interior resists flavors and odors, and the durable exterior finish protects against everyday wear. The bottle’s shape and size fit many cup holders and backpack pockets for convenient transport.

Suitable for

• Daily office and commuting hydration
• Gym and fitness sessions
• Outdoor activities such as hiking and cycling
• School and campus use
• Travel and day trips

Key specifications

• Capacity: 621 ml
• Material: stainless steel interior and exterior
• Insulation: vacuum-sealed double-wall construction
• Lid type: straw-equipped, spill-resistant
• Color: OAT (matte neutral tone)
• Shape: slim profile designed to fit most cup holders

How to use

Fill the bottle with your desired beverage, secure the straw lid by aligning and tightening until it seals, and sip through the straw. For cold drinks, pre-chill the bottle by rinsing with cold water; for hot beverages note that the straw lid may reduce the effectiveness of heat retention compared with a fully sealed cap. Hand wash the straw lid components and bottle opening regularly; the bottle body can be rinsed with warm water and mild detergent. Inspect and reassemble the straw mechanism after cleaning to ensure proper sealing and flow.

Usage recommendations

Do not place carbonated or fermenting liquids in the bottle as pressure build-up can affect the straw lid. Avoid using harsh abrasives or bleach on the exterior finish. For best temperature performance, pre-condition the bottle with hot or cold water before filling, and secure the lid tightly during transport to minimize spills.