---
product_id: 462385575
title: "Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz"
brand: "hydro flask"
price: "FREE"
currency: EUR
in_stock: false
reviews_count: 6
url: https://www.desertcart.sk/products/462385575-hydro-flask-standard-mouth-with-flex-cap-insulated-water-bottle
store_origin: SK
region: Slovakia
---

# 100% leakproof Flex Cap 18/8 pro-grade stainless steel 24-hour cold retention Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz

**Brand:** hydro flask
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 💧 Hydrate like a pro, wherever life takes you.

## Quick Answers

- **What is this?** Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz by hydro flask
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/462385575-hydro-flask-standard-mouth-with-flex-cap-insulated-water-bottle)

## 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

- • **Stay Chill All Day:** Advanced honeycomb insulation locks in cold for 24+ hours, so your drink stays refreshingly crisp from morning meetings to evening workouts.
- • **Sleek & Sustainable:** Lightweight 21 oz size fits perfectly in your hand and most cup holders, combining eco-conscious design with professional aesthetics.
- • **Leakproof Confidence:** Flex Cap design guarantees zero spills—carry it in your bag or bike without a second thought.
- • **Effortless Portability:** Comfortable Flex Strap makes on-the-go hydration stylish and easy, perfect for your active, fast-paced lifestyle.
- • **Durability Meets Purity:** Crafted from premium 18/8 stainless steel to ensure no flavor transfer and long-lasting resilience against daily hustle.

## Overview

The THERMOS Standard Mouth 21 oz insulated water bottle features durable 18/8 pro-grade stainless steel construction, a leakproof Flex Cap with honeycomb insulation for maximum temperature retention, and a comfortable Flex Strap for easy transport. Designed for adults seeking reliable, stylish hydration that keeps drinks cold for over 24 hours without flavor transfer.

## Description

Buy Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz | Stainless Steel, Leakproof, Cupholder Compatible – Insulated Cold 24 Hrs & Hot 12 Hrs – Indigo online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Best value for money - The best bottle we ever bought
Review: Great bottle - Have all the sizes and some tumblers. Quality ate great hopefully can last long

## Features

- THERMOS
- Made with 18/8 pro-grade stainless steel to ensure durability, pure taste and no flavor transfer
- Flex Cap is leakproof when closed, to transport without worry
- Flex Strap is easy to transport and comfortable to carry
- Honeycomb Insulated cap for maximum temperature retention

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09SQP23MC |
| Additional Features | Leakproof |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Base Diameter | 2.8 Inches |
| Best Sellers Rank | #9,654 in Sporting Goods ( See Top 100 in Sporting Goods ) #489 in Sports Water Bottles |
| Brand | Hydro Flask |
| Brand Name | Hydro Flask |
| Cap Type | Flex Cap |
| Capacity | 621 ml |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.8 out of 5 stars 8,093 Reviews |
| Global Trade Identification Number | 00810070083922 |
| Included Components | Water Bottle |
| Is Oven Safe | No |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 7.1W x 23.9H centimeters |
| Item Type Name | Water Bottle |
| Item Weight | 340 g |
| Manufacturer | THERMOS |
| Material Type | Stainless Steel |
| Model Name | THERMOS |
| Number of Items | 1 |
| Pattern | Indigo |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Water |
| Recommended uses for product | Water |
| Special features | Leakproof |
| Theme | Solid |
| UPC | 810070083922 |
| Unit Count | 1 Count |
| With Lid | Yes |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 21 Fluid Ounces
- **Colour:** Black
- **Recommended uses for product:** Water
- **Special features:** Leakproof

## Images

![Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz - Image 1](https://m.media-amazon.com/images/I/61YV+seZLJL.jpg)
![Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz - Image 2](https://m.media-amazon.com/images/I/61SuJqWNs6L.jpg)
![Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz - Image 3](https://m.media-amazon.com/images/I/91Wnfp3o0GL.jpg)
![Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz - Image 4](https://m.media-amazon.com/images/I/718CMmeqQUL.jpg)
![Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz - Image 5](https://m.media-amazon.com/images/I/91BgTx0oqFL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best value for money
*by I***N on 13 October 2023*

The best bottle we ever bought

### ⭐⭐⭐⭐⭐ Great bottle
*by P***U on 9 December 2022*

Have all the sizes and some tumblers. Quality ate great hopefully can last long

### ⭐⭐⭐⭐⭐ Good quality product
*by L***. on 14 December 2019*

My daughter loves her hydro flask! It’s great quality and a fab colour. Although more expensive than some other flasks it doesn’t leak and her drinks stay very cold

## Frequently Bought Together

- Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap and Double-Wall Vacuum Insulation
- Hydro Flask Flex Boot - Accessory Silicone Water Bottle Protector - Dishwasher Safe, BPA-Free, Non-Toxic
- Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle

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**Shop now:** [https://www.desertcart.sk/products/462385575-hydro-flask-standard-mouth-with-flex-cap-insulated-water-bottle](https://www.desertcart.sk/products/462385575-hydro-flask-standard-mouth-with-flex-cap-insulated-water-bottle)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-09-18*