---
product_id: 483448372
title: "Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - White"
brand: "hydro flask"
price: "€ 47.93"
currency: EUR
in_stock: true
reviews_count: 13
category: "Hydro Flask"
url: https://www.desertcart.ie/products/483448372-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel
store_origin: IE
region: Ireland
---

# Leak-proof Flex Straw Lid Keeps drinks hot 12 hrs Keeps drinks cold 24 hrs Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - White

**Brand:** hydro flask
**Price:** € 47.93
**Availability:** ✅ In Stock

## Summary

> 💦 Hydrate like a pro, wherever life takes you!

## Quick Answers

- **What is this?** Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - White by hydro flask
- **How much does it cost?** € 47.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/483448372-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel)

## Best For

- hydro flask enthusiasts

## Why This Product

- Trusted hydro flask brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean Less, Live More:** Dishwasher safe with powder-coated finish for hassle-free maintenance and lasting style.
- • **Confidence in Every Sip:** Backed by a lifetime warranty—Hydro Flask stands behind your hydration companion.
- • **Built to Brave Your Hustle:** Durable, eco-friendly stainless steel withstands daily grind while preserving pure taste.
- • **Sip Effortlessly On-the-Go:** Leak-proof Flex Straw Cap enables one-handed hydration without missing a beat.
- • **Stay Chill or Sizzle All Day:** Double-wall vacuum insulation locks in your ideal drink temp for 24 hrs cold or 12 hrs hot.

## Overview

The Hydro Flask 621 ml stainless steel water bottle features TempShield double-wall vacuum insulation to keep beverages cold for 24 hours or hot for 12 hours. Its leak-proof Flex Straw Cap allows easy one-handed drinking, while the durable, eco-friendly construction resists wear and preserves taste. Dishwasher safe with a powder-coated finish and backed by a lifetime warranty, this bottle is designed for active professionals who demand reliable, stylish hydration.

## Description

This stainless steel bottle keeps drinks cold 24 hrs, hot 12 hrs, thanks to vacuum insulation. The leak-proof straw lid allows easy, one-handed drinking on the move.

Review: Excellent, highly recommend - Excellent, keeps our drinks cold. It feels sturdy and looks great.
Review: The best water bottle brand! - This is the second Hydro Flask bottle I’ve purchased (also have a larger capacity one). They are incredibly high quality bottles. The water stays cold for the time suggested (24 hours) and is completely leak proof, even when rolling around in a bag. It is definitely worth the money!

## Features

- IDEAL DRINKING TEMPERATURE: Our double-wall vacuum-insulated bottle keeps beverages cold for up to 24 hours and hot for up to 12 hours. The TempShield technology prevents condensation and heat transfer to the outside.
- BETTER DRINKING ON THE GO: With double-wall, vacuum-insulated technology, our water bottle maintains the IDEAL temperature. The leak-proof Flex Straw Lid allows for easy drinking with just one hand.
- DURABLE WATER BOTTLE: Our eco-friendly, sturdy stainless steel bottle is perfect for any type of sport. The durable construction withstands everything life throws at it, while keeping the taste of your drink intact.
- DISHWASHER SAFE: Our water bottles come with a powder coating that makes cleaning a breeze. Enjoy more leisure time and less work with this convenient feature.
- SATISFACTION GUARANTEED: We offer a lif etime warranty against manufacturer defects. HYDRO FLASK stands behind our durable and robust materials and is committed to high standards.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09SBQHL9K |
| Batteries required | No |
| Best Sellers Rank | 6,759 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 48 in Insulated Bottles |
| Care instructions | Hand Wash Only |
| Customer Reviews | 4.7 4.7 out of 5 stars (546) |
| Date First Available | 11 Feb. 2022 |
| Dishwasher safe? | Yes |
| Included components | Water bottle., straw, water bottle |
| Is assembly required | No |
| Item model number | S21FS110 |
| Item weight | 0.42 Kilograms |
| Product Dimensions | 7.24 x 7.24 x 28.57 cm; 420 g |
| Warranty description | Hydro flask lifetime warranty. |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 21 Fluid Ounces
- **Colour:** White
- **Recommended uses for product:** Water
- **Special feature:** Cold 24 Hours, Dishwasher Safe, leak

## Images

![Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - White - Image 1](https://m.media-amazon.com/images/I/51fj1YIxVEL.jpg)

## Questions & Answers

**Q: Am I able to buy any of the bottles that already have the flex straw lid on them or do I have to buy that lid separately?**
A: You are able to buy bottles that already come with a flex Straw cap, but for the availability of those units, you need to check with a dealer directly. Your Hydro Flask team.

**Q: Why does it state flex cap as being ‘girls’?**
A: No idea.
This came with a twist cap and it is fine. I use sports bottles with different caps for when in the gym etc. The hydroflask is a really solid design.

**Q: What diameter is the base**
A: Hello,

The diameter of both the 18 Ounce and 21 ounce Standard mouth bottle is 2.87 Inches or 7.29 centimetres.

**Q: Hi how do I know if it is legitimate?**
A: it is legit, it's a great flask

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent, highly recommend
*by M***O on 30 November 2025*

Excellent, keeps our drinks cold. It feels sturdy and looks great.

### ⭐⭐⭐⭐⭐ The best water bottle brand!
*by D***T on 10 October 2025*

This is the second Hydro Flask bottle I’ve purchased (also have a larger capacity one). They are incredibly high quality bottles. The water stays cold for the time suggested (24 hours) and is completely leak proof, even when rolling around in a bag. It is definitely worth the money!

### ⭐⭐⭐⭐⭐ Superb water bottle
*by G***G on 3 January 2026*

Great quality, good size and easy to clean. Not the cheapest water bottle, but its design and function is worth it.

## Frequently Bought Together

- Hydro Flask - Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - White
- hydro flask - flex for

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**Shop now:** [https://www.desertcart.ie/products/483448372-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel](https://www.desertcart.ie/products/483448372-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-31*