---
product_id: 394885446
title: "Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite"
brand: "hydro flask"
price: "₨47618"
currency: LKR
in_stock: true
category: "Hydro Flask"
url: https://www.desertcart.lk/products/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz
store_origin: LK
region: Sri Lanka
---

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

**Brand:** hydro flask
**Price:** ₨47618
**Availability:** ✅ In Stock

## Summary

> 💧 Stay cool, sip smart, and never miss a beat with Hydro Flask’s Standard Mouth!

## Quick Answers

- **What is this?** Hydro Flask Standard Mouth Water Bottle, Flex Cap - 21 oz, Graphite by hydro flask
- **How much does it cost?** ₨47618 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/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

- • **Perfectly Portable:** 21 oz size fits car cup holders, bike racks, and your daily hustle
- • **Grip That Won't Quit:** Powder coat finish ensures a slip-free hold, no condensation, no mess
- • **Eco-Chic & Built to Last:** BPA-free 18/8 stainless steel with lifetime warranty—hydration meets sustainability
- • **Sip in Style, Ice Included:** Standard Mouth opening fits ice cubes yet sips smoothly on the go
- • **TempShield Tech for All-Day Freshness:** Double-wall vacuum insulation locks in temps—cold for 24 hrs, hot for 6

## Overview

The Hydro Flask Standard Mouth Water Bottle (21 oz, Graphite) features BPA-free 18/8 stainless steel construction with double-wall TempShield vacuum insulation that keeps drinks cold for up to 24 hours and hot for up to 6 hours. Its powder coat finish offers a secure, sweat-free grip, while the standard mouth opening accommodates ice cubes and easy sipping. Designed for everyday convenience, it fits most cup holders and bike racks, backed by a lifetime warranty and eco-conscious materials.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01KXHH0QG |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Base Diameter | 2.8 Inches |
| Best Sellers Rank | #125,039 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #2,501 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 46,214 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)

## 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?

## 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.lk/products/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz](https://www.desertcart.lk/products/394885446-hydro-flask-standard-mouth-water-bottle-flex-cap-21-oz)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-07-05*