---
product_id: 277980613
title: "21 oz Double Wall Vacuum Insulated Stainless Steel Leak Proof Sports Water Bottle, Standard Mouth with BPA Free Flex Cap, Black"
brand: "hydro flask"
price: "€ 66.68"
currency: EUR
in_stock: true
category: "Hydro Flask"
url: https://www.desertcart.gr/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof
store_origin: GR
region: Greece
---

# Leak-proof BPA-free flex cap Keeps drinks hot up to 12 hrs Keeps drinks cold up to 24 hrs 21 oz Double Wall Vacuum Insulated Stainless Steel Leak Proof Sports Water Bottle, Standard Mouth with BPA Free Flex Cap, Black

**Brand:** hydro flask
**Price:** € 66.68
**Availability:** ✅ In Stock

## Summary

> 💧 Stay cool, stay hot, stay unstoppable.

## Quick Answers

- **What is this?** 21 oz Double Wall Vacuum Insulated Stainless Steel Leak Proof Sports Water Bottle, Standard Mouth with BPA Free Flex Cap, Black by hydro flask
- **How much does it cost?** € 66.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof)

## 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

- • **Leak-Proof Flex Cap:** Secure, BPA-free lid ensures zero spills—carry confidently anywhere.
- • **Lifetime Warranty Confidence:** Backed by Hydro Flask’s limited lifetime warranty—because quality matters.
- • **Sweat-Free, Color Last Powder Coat:** Ergonomic grip with a sleek matte finish that resists wear and keeps your bottle looking fresh.
- • **Pro-Grade Stainless Steel Durability:** Robust, flavor-pure metal built to survive your busiest days and toughest workouts.
- • **TempShield Tech for All-Day Freshness:** Double-wall vacuum insulation locks in your drink’s perfect temp—no sweat, no condensation.

## Overview

This 21 oz Hydro Flask water bottle features TempShield double-wall vacuum insulation to keep beverages cold for 24 hours or hot for 12 hours. Crafted from pro-grade stainless steel with a leak-proof BPA-free flex cap, it offers durability, flavor protection, and a sweat-free powder coat finish. Dishwasher safe and backed by a limited lifetime warranty, it’s the perfect companion for active professionals on the go.

## Description

Buy Hydro Flask 21 oz Double Wall Vacuum Insulated Stainless Steel Leak Proof Sports Water Bottle, Standard Mouth with BPA Free Flex Cap, Black online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- Enjoy optimum drinking temperature for hours: Our TempShield double wall, vacuum insulated technology guards the temperature of your drink. It also ensures no condensation or heat transfer to the outside of the bottle. It keeps beverages cold up to 24 hours and hot up to 12 hours when using the lid
- Solid and eco-friendly carry-on water bottle for any kind of exercises: All of our bottles are made with pro-grade stainless steel, a robust metal known for its resistance and purity. It also protects against the transfer of flavours – and the durable construction stands up for whatever life brings. It's easy to clean and both the bottle and its lid are dishwasher safe
- Leak proof BPA-Free water bottle: This water bottle comes with Standard Mouth Insulated Leak Proof Flex Cap for even better temperature control. The bottle is also compatible with Standard Mouth Insulated Sport Cap.
- Enjoy an immersive drinking experience anywhere: Whether you’re heading to yoga, biking, hiking or going to the office, you can easily take your refreshment with you in this Insulated Standard Mouth Water Bottle. Our Color Last powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere
- 100% Customer and product satisfaction warranty: We stand behind our products and have great faith in our products. HYDRO FLASK is committed to high standards of durable and robust materials. HYDRO FLASK guarantees this product with a limited lifetime warranty against manufacturer defects

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Hydro Flask |
| Model Number | S21SX001 |
| Color | Black |
| Product Dimensions | 2.85 x 2.85 x 11.1 cm; 23.68 g |
| Capacity | 21 Fluid Ounces |
| Material | Stainless Steel |
| Special Features | Dishwasher Safe, Double Wall, Vacuum Insulated |
| Item Weight | 23.7 g |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 21 Fluid Ounces
- **Colour:** Black
- **Recommended uses for product:** Water
- **Special features:** Dishwasher Safe, Double Wall, Vacuum Insulated

## Images

![21 oz Double Wall Vacuum Insulated Stainless Steel Leak Proof Sports Water Bottle, Standard Mouth with BPA Free Flex Cap, Black - Image 1](https://m.media-amazon.com/images/I/61zTQE7uD5L.jpg)

## Questions & Answers

**Q: Re Hydro Flask 24", what does "flex lid" mean?**
A: no, you can't. if you watch the video it shows that you have to remove the lid to drink. i think the "flex" is in fact that the handle folds down, instead of being "fixed".  you can get a lid that has a pop-up straw.

**Q: Ok so does it come with little stickers?**
A: Hi - Wendy here from Tall Ridge, the exclusive authorized seller of Hydro Flask products on Amazon - Thank you for your inquiry! Our Hydro Flask products do not come with stickers. I hope that answers your question.

**Q: Curious... is the bottle supposed to be perfectly round all the way up and down?  i just received mine from amazon and it is not.  it feels oblong.**
A: Yes, it should be perfectly cylindrical (round) all the way up. If it's not, there is an issue, and I would think that the company would take care of it. To tell if it's in fact round, remove the cap, make sure it's empty, place it on its side on a flat surface, and roll it.

**Q: I just bought this hydroflask in the color olive. Is it normal for the lid to have to be forced to close all the way? It doesnt close easily**
A: How did this work out for you? I'm experiencing same problem? I know it's not normal as I have been using this brand for a couple years now. Did u keep and use?

## Frequently Bought Together

- Hydro Flask Standard Flex Cap Black 21 Oz
- Hydro Flask Flex Boot - Accessory Silicone Water Bottle Protector - Dishwasher Safe, BPA-Free, Non-Toxic Small
- Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle

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**Shop now:** [https://www.desertcart.gr/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof](https://www.desertcart.gr/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-02*