---
product_id: 394885446
title: "Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite"
brand: "hydro flask"
price: "฿6137"
currency: THB
in_stock: true
reviews_count: 9
category: "Hydro Flask"
url: https://www.desertcart.co.th/products/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz
store_origin: TH
region: Thailand
---

# Keeps hot up to 6h Keeps cold up to 24h Durable powder coat grip Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite

**Brand:** hydro flask
**Price:** ฿6137
**Availability:** ✅ In Stock

## Summary

> 💧 Stay chill, stay sleek — hydration that keeps up with your hustle!

## Quick Answers

- **What is this?** Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite by hydro flask
- **How much does it cost?** ฿6137 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/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz)

## 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

- • **TempShield Tech:** Double-wall vacuum insulation locks temperature for hours
- • **Perfectly Portable:** 21 oz size fits car cup holders, bike racks, and backpacks effortlessly
- • **Grip That Won't Slip:** Powder coat finish ensures a confident, sweat-free hold
- • **Eco & Health Conscious:** BPA-free, 18/8 stainless steel with lifetime warranty for pure taste and planet care
- • **Sip in Style, Ice Included:** Standard Mouth fits ice cubes yet sips smoothly on the go

## Overview

The Hydro Flask Standard Mouth 21 oz water bottle in Graphite combines advanced TempShield double-wall vacuum insulation to keep drinks cold for 24 hours or hot for 6 hours. Its powder-coated, BPA-free 18/8 stainless steel body offers a slip-resistant grip and durability, while the standard mouth opening fits ice cubes and allows easy sipping. Designed for active professionals, it fits seamlessly into car cup holders and bike racks, backed by a lifetime warranty and eco-conscious materials.

## Description

Count on ice in the forecast. Staying hydrated is easy when you’ve got this portable thirst-quenching travel buddy. Whether you’re headed to the gym or a quick jaunt across town, you can easily take your refreshment with you. The 18/8 stainless steel double wall vacuum insulation technology will keep cold liquids chilled for up to 24 hours, while hot liquids remain hot for up to 6. The Standard Mouth opening is large enough to fit most ice cubes, but small enough to sip from on the go. Double wall vacuum insulation keeps your ice cubes intact and your drink icy cold for up to 24 hours. It's large enough to hold water for the day, yet it fits easily into a pack, side pocket or car cup holder. 18/8 stainless steel keeps your favorite beverage fresh and pure, without any leftover flavors or odors. All Hydro Flasks use recyclable materials and are backed by the manufacturer's lifetime warranty. Features: Small enough for convenient transport Standard Mouth Opening TempShield Protected Double Wall Vacuum Insulated Keeps Hot up to 6 Hours, Keeps Cold up to 24 Hours Durable, sweat-free powder coat finish (except for the Stainless option) BPA-Free 18/8 Stainless Steel Lifetime Warranty compatible Lids: Hydro Flask Sport Cap Parks for All - With Hydro Flask's new giving program, Parks for All, they are focusing on one overarching goal: supporting the development and maintenance of public green spaces everywhere Hand wash only with hot, soapy water. Rinse and dry, and it's ready for adventure

## Features

- DESIGN IN MIND: Standard Mouth is ideal for sipping, while still accommodating ice cubes. Also, safety is top-of-mind, as the bottles are made out of non-toxic BPA-free plastics & 18/8 food-grade stainless steel.
- SLIP-FREE GRIP: Unlike other leading water bottles, Hydro Flask has a powder coat, which gives you a solid grip. The Powder Coat works with the premium TempShield insulation, which prevents condensation from forming on the outside of the bottle, to give you exactly what you want in an everyday refreshment delivery system.
- JUST THE RIGHT SIZE: Meets your everyday hydration needs in one container, all while keeping it piping hot or ice cold and fitting comfortably and conveniently in your hand or your vehicles' cup holders and bicycle bottle racks.
- INSULATION INNOVATION: The double-walled, vacuum insulated TempShield Insulation, the same technology used in all Hydro Flask products, will ensure that your beverage of choice maintains its temperature for many hours to come. Hot drinks up to 6 hours, and cold drinks up to 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01KXHH0QG |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Base Diameter | 2.8 Inches |
| Best Sellers Rank | #288,989 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #3,823 in Insulated Bottles |
| Brand | Hydro Flask |
| Cap Type | Screw Cap |
| Capacity | 18 Fluid Ounces |
| Colour | Graphite |
| Country of Origin | USA |
| Customer Reviews | 4.8 out of 5 stars 46,257 Reviews |
| Enclosure Material | Stainless Steel |
| Global Trade Identification Number | 00810497025581 |
| Importer Contact Information | Creative Peripherals and Distribution Limited 3rd & 4th Floor, Plot No. 137AB, Kandivali Co Op Industrial Estate Limited, Charkop, Kandivali West, Mumbai – 400 067 |
| Included Components | Lid |
| Is Oven Safe | No |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Type Name | Water Bottle |
| Item Weight | 22 g |
| Manufacturer | Hydro Flask, Hydro Flask 525 NW York Dr Bend, OR Sportswear |
| Manufacturer Contact Information | Hydro Flask 525 NW York Dr Bend, OR Sportswear |
| Manufacturer Warranty Description | 1 Year manufacturer Warranty from the date of purchase |
| Model Name | S18SX110 |
| Number of Items | 1 |
| OutputCapacity | 18 Fluid Ounces |
| Packer Contact Information | Hydro Flask 525 NW York Dr Bend, OR Sportswear |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Product Features | tsa-ready |
| Recommended Uses For Product | Water |
| Special Feature | tsa-ready |
| Theme | Food & Beverage |
| UPC | 810497025581 |
| Unit Count | 1 Count |
| With Lid | Yes |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 18 Fluid Ounces
- **Colour:** Graphite
- **Special Feature:** tsa-ready
- **Age Range (Description):** Adult

## Images

![Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite - Image 1](https://m.media-amazon.com/images/I/51oHnR7eiAL.jpg)
![Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite - Image 2](https://m.media-amazon.com/images/I/71wOilJLWiL.jpg)
![Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite - Image 3](https://m.media-amazon.com/images/I/51T+nHl5WrL.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

### ⭐⭐⭐⭐⭐ Review
*by S***N on 25 January 2025*



### ⭐⭐⭐⭐⭐ Review
*by J***O on 25 January 2025*



### ⭐⭐⭐⭐⭐ Review
*by C***A on 10 May 2023*



## Frequently Bought Together

- Hydro Flask Standard Flex Cap White 18 Oz
- 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.co.th/products/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz](https://www.desertcart.co.th/products/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-26*