---
product_id: 70700139
title: "Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black"
brand: "hydro flask"
price: "€ 17.20"
currency: EUR
in_stock: true
reviews_count: 6
category: "Hydro Flask"
url: https://www.desertcart.ie/products/70700139-hydro-flask-flex-cap-for-standrd-mouth-leak-proof-honeycomb
store_origin: IE
region: Ireland
---

# Leakproof seal for zero spills Keeps drinks cold for 24 hours Dishwasher safe for effortless cleaning Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black

**Brand:** hydro flask
**Price:** € 17.20
**Availability:** ✅ In Stock

## Summary

> ❄️ Stay cool, leak less, and carry on with Hydro Flask Flex Cap!

## Quick Answers

- **What is this?** Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black by hydro flask
- **How much does it cost?** € 17.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/70700139-hydro-flask-flex-cap-for-standrd-mouth-leak-proof-honeycomb)

## 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

- • **Universal Fit:** Designed to perfectly fit 18oz, 21oz, and 24oz Hydro Flask standard mouth bottles
- • **24-Hour Chill Power:** Honeycomb insulation locks in cold for all-day refreshment
- • **Lifetime Durability:** Backed by Hydro Flask’s lifetime warranty, built to last through every adventure
- • **Leakproof Confidence:** Secure seal means no drips, no mess—carry it anywhere worry-free
- • **Effortless Maintenance:** Dishwasher safe materials make cleaning a breeze—stay fresh without the hassle

## Overview

The Hydro Flask Flex Cap is a leakproof, honeycomb-insulated lid designed for standard mouth bottles (18oz, 21oz, 24oz). It keeps beverages cold for up to 24 hours, fits securely to prevent spills, and is dishwasher safe for easy cleaning. Crafted from durable, BPA-free materials and backed by a lifetime warranty, this cap combines practical performance with sleek portability.

## Description

From the manufacturer S26 Hydro Flask Launch

Review: No straw included?? - Where’s the straw? You need to attach a straw for this to work properly (otherwise if you just “flip and sip” it leaks like crazy from the little air hole). No mention anywhere that you need your own flexi straw, one was not included. Improper advertising and expensive yet useless product. Not impressed.
Review: Pasdt super - Passt super, tolle Verarbeitung

## Features

- COLD DRINKS FOR 24 HOURS: The honeycomb-insulated Cap keeps beverages at the ideal temperature for hours. Enjoy cold refreshments for up to 24 hours.
- COMPATIBILITY: Try it with our standard opening bottles [18 oz (532 ml), 21 oz (621 ml), 24 oz (709 ml)] for a perfect fit and an enhanced drinking experience
- LEAKPROOF WHEN CLOSED: Say goodbye to drips and leaks with this cap's leakproof design, ensuring your beverage stays where it should
- DISHWASHER SAFE: Made from materials for drink safety, this lid is also dishwasher safe for easy cleaning
- 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 | B06XPN4SFK |
| Best Sellers Rank | 4,220 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 242 in Canteens & Water Bottles |
| Brand | Hydro Flask |
| Closure Type | Snap |
| Colour | Black |
| Country of Origin | China |
| Customer Reviews | 4.8 out of 5 stars 1,205 Reviews |
| Global Trade Identification Number | 00810497026885 |
| Included Components | Bottle lid. |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | No |
| Item Type Name | Standard Mouth Cap |
| Item Weight | 0.01 Pounds |
| Item weight | 0.01 Pounds |
| Manufacturer | Hydro Flask |
| Manufacturer Warranty Description | Hydro flask lifetime warranty. |
| Material | Plastic |
| Model Number | SFX001 |
| Number of Pieces | 1 |
| Part Number | SFX001 |
| Product Style | Flex Cap |
| Shape | Rectangular |
| Style | Flex Cap |
| UPC | 810497026885 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 1.13 kg
- **Colour:** Black
- **Recommended uses for product:** Tee
- **Special feature:** Cold 24 Hours, Dishwasher Safe, Leak

## Images

![Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black - Image 1](https://m.media-amazon.com/images/I/61xLVY6SRwL.jpg)
![Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black - Image 2](https://m.media-amazon.com/images/I/61vVeUq4RvL.jpg)
![Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black - Image 3](https://m.media-amazon.com/images/I/7132A6+WZLL.jpg)
![Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black - Image 4](https://m.media-amazon.com/images/I/7192fLsRdJL.jpg)
![Hydro Flask - Flex Cap for Standrd Mouth - Leak Proof - Honeycomb Insulation Cap with Flex Strap for Easy Carrying - Black - Image 5](https://m.media-amazon.com/images/I/71DNi20fcGL.jpg)

## Questions & Answers

**Q: does this fit 30oZ bottle?**
A: If it has the standard opening then yes it will fit perfectly.

## Customer Reviews

### ⭐⭐ No straw included??
*by H***C on 20 July 2025*

Where’s the straw? You need to attach a straw for this to work properly (otherwise if you just “flip and sip” it leaks like crazy from the little air hole). No mention anywhere that you need your own flexi straw, one was not included. Improper advertising and expensive yet useless product. Not impressed.

### ⭐⭐⭐⭐⭐ Pasdt super
*by B***B on 30 January 2026*

Passt super, tolle Verarbeitung

### ⭐⭐ Un peu de bon sens svp ..
*by C***N on 17 December 2025*

Cher pour ce que c’est. C’est dommage de devoir remplacer un simple bouchon à ce prix là.

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**Shop now:** [https://www.desertcart.ie/products/70700139-hydro-flask-flex-cap-for-standrd-mouth-leak-proof-honeycomb](https://www.desertcart.ie/products/70700139-hydro-flask-flex-cap-for-standrd-mouth-leak-proof-honeycomb)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-05-29*