---
product_id: 462385575
title: "Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz"
brand: "hydro flask"
price: "¥14036"
currency: JPY
in_stock: true
category: "Hydro Flask"
url: https://www.desertcart.jp/products/462385575-standard-mouth-with-flex-cap-insulated-water-bottle-21-oz
store_origin: JP
region: Japan
---

# Leakproof Flex Cap Keeps drinks hot 12h Keeps drinks cold 24h Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz

**Brand:** hydro flask
**Price:** ¥14036
**Availability:** ✅ In Stock

## Summary

> 💧Hydrate like a boss—cold, hot, and leakproof, all day long.

## Quick Answers

- **What is this?** Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz by hydro flask
- **How much does it cost?** ¥14036 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/462385575-standard-mouth-with-flex-cap-insulated-water-bottle-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

- • **No-Spill Confidence:** Flex Cap’s leakproof seal means you can toss it in your bag worry-free.
- • **Honeycomb Insulated Cap:** Maximizes temperature retention for your beverage’s perfect sip every time.
- • **Carry Comfortably, Anywhere:** Ergonomic Flex Strap makes on-the-go hydration effortless and stylish.
- • **Stay Chill or Sizzle All Day:** TempShield insulation locks in temps—cold for 24 hours, hot for 12.
- • **Built to Last, Designed to Impress:** 18/8 pro-grade stainless steel ensures durability and pure taste with zero flavor transfer.

## Overview

The Hydro Flask Standard Mouth with Flex Cap is a 21 oz insulated water bottle crafted from durable 18/8 pro-grade stainless steel. Featuring TempShield insulation, it keeps beverages cold for up to 24 hours and hot for up to 12 hours. Its leakproof Flex Cap and comfortable Flex Strap make it the ultimate companion for busy professionals seeking reliable, stylish hydration on the move.

## Description

Buy Hydro Flask Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

## Features

- TempShield insulation keeps beverages cold up to 24 hours and hot up to 12 hours
- 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 |
| Base Diameter | 2.8 Inches |
| Best Sellers Rank | #1,196 in Sporting Goods ( See Top 100 in Sporting Goods ) #98 in Sports Water Bottles |
| Brand Name | Hydro Flask |
| Cap Type | Flex Cap |
| Capacity | 21 Fluid Ounces |
| Color | Black |
| Customer Reviews | 4.8 4.8 out of 5 stars (6,889) |
| 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 | Hydro Flask |
| Material Type | Stainless Steel |
| Model Name | THERMOS |
| Number of Items | 1 |
| Pattern | Indigo |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Water |
| 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

![Standard Mouth with Flex Cap - Insulated Water Bottle, 21 Oz - Image 1](https://m.media-amazon.com/images/I/61YV+seZLJL.jpg)

## Available Options

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

## 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.jp/products/462385575-standard-mouth-with-flex-cap-insulated-water-bottle-21-oz](https://www.desertcart.jp/products/462385575-standard-mouth-with-flex-cap-insulated-water-bottle-21-oz)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-06-18*