---
product_id: 539904271
title: "21 oz Standard Mouth with Flex Cap Stainless Steel Reusable Water Bottle Lupine - Vacuum Insulated, Dishwasher Safe, BPA-Free, Non-Toxic"
brand: "hydro flask"
price: "VT15145"
currency: VUV
in_stock: true
reviews_count: 11
category: "Hydro Flask"
url: https://www.desertcart.vu/products/539904271-21-oz-standard-mouth-with-flex-cap-stainless-steel-reusable
store_origin: VU
region: Vanuatu
---

# Leak-proof & sweat-free Keeps drinks hot 12h Keeps drinks cold 24h 21 oz Standard Mouth with Flex Cap Stainless Steel Reusable Water Bottle Lupine - Vacuum Insulated, Dishwasher Safe, BPA-Free, Non-Toxic

**Brand:** hydro flask
**Price:** VT15145
**Availability:** ✅ In Stock

## Summary

> 💦 Sip Boldly, Stay Cool or Warm, Wherever Life Takes You!

## Quick Answers

- **What is this?** 21 oz Standard Mouth with Flex Cap Stainless Steel Reusable Water Bottle Lupine - Vacuum Insulated, Dishwasher Safe, BPA-Free, Non-Toxic by hydro flask
- **How much does it cost?** VT15145 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/539904271-21-oz-standard-mouth-with-flex-cap-stainless-steel-reusable)

## 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

- • **Effortless Clean-Up:** Dishwasher safe with a resilient powder coating, making maintenance a breeze so you can spend more time on what matters.
- • **No-Spill Confidence:** Equipped with a leak-proof flex cap and carrying strap, this bottle travels securely in your bag or bike holder without a single drop lost.
- • **Lifetime Warranty Backed:** Hydro Flask stands behind its quality with a lifetime warranty, ensuring your hydration companion is as reliable as your ambition.
- • **All-day Temperature Control:** Double-wall vacuum insulation locks in cold for 24 hours and hot for 12 hours, so your drink stays perfect from morning meetings to evening workouts.
- • **Built to Endure Your Hustle:** Crafted from durable, eco-friendly stainless steel that resists dents and keeps flavors pure—because your bottle should keep up with your lifestyle, not slow you down.

## Overview

The Hydro Flask 21 oz Standard Mouth with Flex Cap is a premium stainless steel water bottle featuring double-wall vacuum insulation that keeps beverages cold for up to 24 hours and hot for up to 12 hours. Designed for durability and convenience, it includes a leak-proof lid with a carrying strap, is dishwasher safe, BPA-free, and backed by a lifetime warranty—perfect for professionals and adventurers who demand reliable hydration on the go.

## Description

We make thoughtful, beautifully designed gear that moves people. Towards nature. Towards happy. And towards each other. Because life is an adventure and we’re glad to be with you for every step, sip and smile along the way. Surrounded by mountains, rivers and lakes, HYDRO FLASK HQ is literally nestled into a Pacific Northwest wonderland– Bend, Oregon. Where we are from, is part of who we are and it’s in our DNA. It has shaped our products, people and what we’re about as a company.Not only is the outdoors our everything, but we love to share all kinds of life experiences with others, whether it's a day at the office or at the university or a yoga class. That is our purpose and our heartbeat. Whatever you need to help you be outside living your best life, we're in. The inspiration behind every product we design is Mother Nature. There’s never anything extra – every choice is made for a reason. Keep it strikingly simple. From product innovation to colour leadership - simplicity drives all.

Review: Luv it !! - Keeps the water cold for hours
Review: Excellent - I bought this item for when I play golf and it's perfect. Keeps cold drinks cold. Haven't used it for hot items. I did hqve to buy a protector for the base separately shame it didn't come eith 1 but worth the buy

## 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
- 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
- LEAK-PROOF: Our BPA-free, insulated bottle is equipped with a leak-proof lid with a carrying strap; The standard opening allows for easy filling and cleaning; Compatible with standard mouth straw cap
- 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 | B0BG6L85SR |
| Anti-Tick Material | Steel |
| Batteries required | No |
| Best Sellers Rank | #42,286 in Kitchen ( See Top 100 in Kitchen ) #630 in Insulated Bottles |
| Care instructions | Dishwasher safe |
| Customer Reviews | 4.8 4.8 out of 5 stars (19,406) |
| Date First Available | 24 February 2023 |
| Dishwasher safe? | Yes |
| Fabric Type | Steel |
| Import designation | Imported |
| Included components | Standard Mouth Flex Cap Bottle |
| Item Weight | 381 g |
| Item model number | S21SX474 |
| Product Dimensions | 7.24 x 7.24 x 28.32 cm; 381.02 g |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 595 g
- **Colour:** Lupine
- **Recommended uses for product:** Water
- **Special features:** Straw, dishwasher safe straw double wall leak-proof insulated leak-proof leak-proof

## Images

![21 oz Standard Mouth with Flex Cap Stainless Steel Reusable Water Bottle Lupine - Vacuum Insulated, Dishwasher Safe, BPA-Free, Non-Toxic - Image 1](https://m.media-amazon.com/images/I/51903rChFvL.jpg)

## Available Options

This product comes in different **Color, Size, Style** 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

### ⭐⭐⭐⭐⭐ Luv it !!
*by J***N on 13 June 2025*

Keeps the water cold for hours

### ⭐⭐⭐⭐⭐ Excellent
*by M***N on 8 December 2023*

I bought this item for when I play golf and it's perfect. Keeps cold drinks cold. Haven't used it for hot items. I did hqve to buy a protector for the base separately shame it didn't come eith 1 but worth the buy

### ⭐⭐⭐⭐⭐ Excellent
*by B***R on 29 September 2024*

Good quality

## Frequently Bought Together

- Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap and Double-Wall Vacuum Insulation
- Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle

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**Shop now:** [https://www.desertcart.vu/products/539904271-21-oz-standard-mouth-with-flex-cap-stainless-steel-reusable](https://www.desertcart.vu/products/539904271-21-oz-standard-mouth-with-flex-cap-stainless-steel-reusable)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-08*