---
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: "฿3919"
currency: THB
in_stock: true
reviews_count: 13
category: "Hydro Flask"
url: https://www.desertcart.co.th/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof
store_origin: TH
region: Thailand
---

# Leak-proof BPA-free flex cap Keeps drinks hot up to 12h Keeps drinks cold up to 24h 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:** ฿3919
**Availability:** ✅ In Stock

## Summary

> 💧 Stay cool, stay hot, stay unstoppable with Hydro Flask.

## 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?** ฿3919 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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 from yoga to boardroom.
- • **Lifetime Warranty Confidence:** Backed by Hydro Flask’s limited lifetime warranty—because quality is non-negotiable.
- • **Sweat-Free Color Last Powder Coat:** Ergonomic grip with a sleek matte finish that resists scratches and stays fresh-looking.
- • **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

The Hydro Flask 21 oz 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 ultimate hydration companion for active professionals.

## 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.

Review: Best Drinking Bottle - I needed to get me one that will fit my daily bag to work. I found this size and til now I am very satisfied. It keeps your drink cool for hours! When I put ice in it in the morning, it will stay there til night. I am a hydroflask user ever since, i left mine back home so I decided to buy one here. Recommended for drinking bottle
Review: Very nice - Cute bottle and keeps water cold for a long time

## 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 |
|---------------|-------|
| ASIN | B01KXHIWL8 |
| Best Sellers Rank | #7,755 in Sporting Goods ( See Top 100 in Sporting Goods ) #391 in Sports Water Bottles |
| Brand | Hydro Flask |
| Capacity | 21 Fluid Ounces |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (7,779) |
| Date First Available | 27 February 2017 |
| Item Weight | 23.7 g |
| Material | Stainless Steel |
| Model Number | S21SX001 |
| Product Dimensions | 7.24 x 7.24 x 28.19 cm; 23.68 g |
| Special Features | Dishwasher Safe, Double Wall, Vacuum Insulated |

## 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)

## Available Options

This product comes in different **Color, Size** options.

## 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?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Drinking Bottle
*by C***E on 12 September 2023*

I needed to get me one that will fit my daily bag to work. I found this size and til now I am very satisfied. It keeps your drink cool for hours! When I put ice in it in the morning, it will stay there til night. I am a hydroflask user ever since, i left mine back home so I decided to buy one here. Recommended for drinking bottle

### ⭐⭐⭐⭐⭐ Very nice
*by W***N on 23 September 2024*

Cute bottle and keeps water cold for a long time

### ⭐⭐⭐⭐⭐ Good quality
*by S***L on 19 September 2024*

Good quality

## 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.co.th/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof](https://www.desertcart.co.th/products/277980613-21-oz-double-wall-vacuum-insulated-stainless-steel-leak-proof)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-03*