Hydro Flask Standard Mouth Flex Straw Cap Water Bottle 21 oz (620 ml) Black

The Hydro Flask Standard Mouth Flex Straw Cap Water Bottle combines premium insulation with a convenient straw lid for effortless hydration. Crafted from 18/8 Pro-Grade Stainless Steel, this 21 oz (620 ml) bottle keeps drinks cold up to 24 hours or hot up to 12 hours. The powder coat finish provides a durable, sweat-free grip, while the Flex Straw Cap offers one-handed drinking and a leak-proof seal when the straw is folded down. BPA-free and phthalate-free, it's the perfect companion for active lifestyles.

Advantages

TempShield double-wall vacuum insulation maintains temperature for hours. The Flex Straw Cap allows easy sipping without tilting, and the flexible handle makes carrying simple. The wide mouth accommodates ice cubes and is compatible with other Hydro Flask Standard Mouth caps. Dishwasher safe for effortless cleaning.

Suitable for

• Daily hydration at home, office, or gym
• Outdoor activities like hiking, biking, and camping
• Travel and commuting

Key specifications

• Capacity: 21 oz (621 ml)
• Material: 18/8 Pro-Grade Stainless Steel
• Insulation: TempShield Double-Wall Vacuum Insulation
• Cap Type: Flex Straw Cap
• Mouth Type: Standard Mouth
• Color: Black
• BPA-Free: Yes
• Phthalate-Free: Yes
• Dishwasher Safe: Bottle: Yes, Cap: Top-rack
• Cold Retention: Up to 24 hours
• Hot Retention: Up to 12 hours
• Finish: Powder Coat
• Leak-Proof: Yes (when straw is folded down)
• Carrying Feature: Flexible handle on cap

Recommendations

For optimal performance, pre-heat or pre-cool the bottle before use. Hand wash cap for longevity. Compatible with all Hydro Flask Standard Mouth accessories.