---
product_id: 478729013
title: "Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - Black"
brand: "hydro flask"
price: "KSh15067"
currency: KES
in_stock: true
reviews_count: 13
category: "Hydro Flask"
url: https://www.desertcart.co.ke/products/478729013-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel
store_origin: KE
region: Kenya
---

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

**Brand:** hydro flask
**Price:** KSh15067
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your hydration game — because your hustle deserves the best.

## Quick Answers

- **What is this?** Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - Black by hydro flask
- **How much does it cost?** KSh15067 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/478729013-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:** Powder-coated finish is dishwasher safe, making maintenance a breeze for your busy lifestyle.
- • **Confidence in Every Sip:** Backed by a lifetime warranty, Hydro Flask guarantees quality that lasts a lifetime.
- • **Built to Brave Your Hustle:** Durable, eco-friendly stainless steel withstands daily grind without compromising taste.
- • **Sip Hands-Free, Stress-Free:** Leak-proof Flex Straw Cap lets you hydrate effortlessly on the move with one hand.
- • **Stay Chill or Sizzle All Day:** Double-wall vacuum insulation locks in your ideal drink temp for up to 24 hours cold or 12 hours hot.

## Overview

The Hydro Flask 621 ml 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 enables easy one-handed drinking, while the durable stainless steel body resists wear and preserves taste. Dishwasher safe with a powder-coated finish and backed by a lifetime warranty, this bottle is designed for professionals who demand performance and style on the go.

## Description

From the brand Shop Micro Visit the store Shop Micro Visit the store Shop Travel Bottle Visit the store Shop Travel Bottle Shop Travel Tumbler Visit the store Shop Travel Tumbler Shop Bottles Visit the store Shop Bottles Shop Coffee Visit the store Shop Coffee

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 | B09SBS12KG |
| Batteries required | No |
| Best Sellers Rank | 10,997 in Home & Kitchen ( See Top 100 in Home & Kitchen ) 66 in Insulated Bottles |
| Care instructions | Machine Wash |
| Customer Reviews | 4.7 4.7 out of 5 stars (577) |
| Date First Available | 11 Feb. 2022 |
| Dishwasher safe? | Yes |
| Included components | straw, water bottle |
| Is assembly required | No |
| Item model number | S21FS001 |
| Product Dimensions | 7.2 x 7.2 x 7.2 cm; 408 g |
| Warranty description | Hydro flask lifetime warranty. |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 21 Fluid Ounces
- **Colour:** Black
- **Recommended uses for product:** Water
- **Special feature:** Dishwasher Safe, Leakproof

## Images

![Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - Black - Image 1](https://m.media-amazon.com/images/I/612CCh1P50L.jpg)

## Available Options

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

## 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!

### ⭐⭐⭐⭐⭐ The best bottles for all ages
*by A***A on 7 January 2026*

The best bottles ever. Easy to clean and they keep water cold or warm. Love them.

## Frequently Bought Together

- HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leakproof Lid - Hot and Cold Drinks - Standard Mouth - BPA-Free - Black
- 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.ke/products/478729013-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel](https://www.desertcart.co.ke/products/478729013-water-bottle-621-ml-21-oz-vacuum-insulated-stainless-steel)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-13*