---
product_id: 428270286
title: "Flex Straw Cap for Wide Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black"
brand: "hydro flask"
price: "€ 24.80"
currency: EUR
in_stock: true
reviews_count: 8
category: "Hydro Flask"
url: https://www.desertcart.ie/products/428270286-flex-straw-cap-for-wide-mouth-leakproof-honeycomb-insulated-cap
store_origin: IE
region: Ireland
---

# Dishwasher safe for effortless cleaning Flex strap for easy on-the-go carry 100% leakproof seal Flex Straw Cap for Wide Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black

**Brand:** hydro flask
**Price:** € 24.80
**Availability:** ✅ In Stock

## Summary

> 💦 Stay hydrated, leak-free, and stylish on the move!

## Quick Answers

- **What is this?** Flex Straw Cap for Wide Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black by hydro flask
- **How much does it cost?** € 24.80 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/428270286-flex-straw-cap-for-wide-mouth-leakproof-honeycomb-insulated-cap)

## 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 materials mean no hassle, just pure convenience after every adventure.
- • **Carry with Confidence:** Built-in flex strap ensures your bottle stays close, perfect for busy commutes and outdoor escapes.
- • **Universal Wide Mouth Fit:** Compatible with all Hydro Flask wide mouth bottles from 20 oz to 64 oz for ultimate versatility.
- • **Lifetime Durability Promise:** Backed by Hydro Flask’s lifetime warranty, this cap is made to last through every hustle.
- • **Sip Seamlessly, Spill Never:** Leakproof design keeps your hydration mess-free, even in backpacks or car holders.

## Overview

The Hydro Flask Flex Straw Cap is a leakproof, dishwasher-safe lid designed for wide mouth Hydro Flask bottles (20-64 oz). Featuring a durable honeycomb insulated cap and a flexible carrying strap, it offers spill-free hydration with easy cleaning and a lifetime warranty, making it the perfect upgrade for active professionals who demand convenience and reliability.

## Description

Shop at desertcart.co.uk for Hydro Flask - Flex Straw Cap for Wide Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black : Sports & Outdoors.

Review: Perfect Cap for My Hydro Flask - I really like this Flex Cap. It fits my wide mouth Hydro Flask perfectly and feels super sturdy. I’ve carried it in my backpack and car cup holder, and not a single leak so far. It’s also really easy to clean, which I appreciate since I use my bottle every day. The stainless steel looks great and has that high-quality feel Hydro Flask is known for. If you need a solid replacement or just want a backup lid, this one’s worth it. Simple, durable, and completely leakproof.
Review: Great quality, useful new cap - I've been thinking of getting one of these caps for a while, and I'm glad I finally did. It's really encouraged me to drink more water now I don't have to undo and redo the cap every time. It sounds like a small issue but it makes a difference. The build quality is great as you would expect, absolutely no leaking. The size is a little larger than the basic cap height-wise, but there is no noticeable weight difference. Easy to clean as it comes apart easily. No metal parts so no need to worry about rust. I'd recommend for any Hydro Flask users who like to use straws.

## Features

- STRAW CAP: Upgrade your wide mouth bottle with our leakproof Flex Straw Lid for on-the-go hydration without spills. Enjoy your drink at the perfect temperature and stay refreshed while on the move
- COMPATIBILITY: Try it with our wide mouth bottles [20 oz (591 ml), 32 oz (946 ml), 40 oz (1180 ml), 64 oz (1893 ml)] for a perfect match
- 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 | B07NSQTQK9 |
| Best Sellers Rank | 1,970 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 609 in Camping & Hiking |
| Brand | Hydro Flask |
| Closure Type | Strohhalm |
| Colour | Black |
| Country of Origin | China |
| Customer Reviews | 4.6 out of 5 stars 13,971 Reviews |
| Global Trade Identification Number | 00810911035578 |
| Included Components | Water Bottle Accessory |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | Yes |
| Item Dimensions L x W | 9.9L x 8.1W centimetres |
| Item Type Name | Straw Cap |
| Item Weight | 0.31 Pounds |
| Item weight | 0.31 Pounds |
| Manufacturer | Hydro Flask |
| Manufacturer Warranty Description | Hydro flask lifetime warranty. |
| Material | Plastic |
| Number of Pieces | 1 |
| Product Style | Straw Cap |
| Product dimensions | 9.9L x 8.1W centimetres |
| Shape | Round |
| Style | Straw Cap |
| UPC | 810911035578 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** Hydro Flask
- **Colour:** Black
- **Material:** Plastic
- **Product dimensions:** 9.9L x 8.1W centimetres
- **Style:** Straw Cap

## Images

![Flex Straw Cap for Wide Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black - Image 1](https://m.media-amazon.com/images/I/511NioJ-g4L.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this comparable with a wide mouth nalgene?**
A: I would say the only thing it is compatible with is a trash can.

**Q: Does this fit the 18 oz hydroflask bottle?**
A: No it will fit any wide mouth bottles though- I assume the 18oz is a standard mouth bottle, they do make a flex straw lid for smaller bottles

**Q: Is the straw long enough for the 40 ounce bottle?**
A: Yes! The straw comes extra long, and you use a ruler included on the packaging to cut it to the various water bottle sizes. Tip: cut it at a 45 degree angle instead of straight across for better performance!

**Q: Does this fit the 32 oz trail series m?**
A: If it’s a wide mouth bottle and straw lid is wide mouth yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Cap for My Hydro Flask
*by L***T on 12 October 2025*

I really like this Flex Cap. It fits my wide mouth Hydro Flask perfectly and feels super sturdy. I’ve carried it in my backpack and car cup holder, and not a single leak so far. It’s also really easy to clean, which I appreciate since I use my bottle every day. The stainless steel looks great and has that high-quality feel Hydro Flask is known for. If you need a solid replacement or just want a backup lid, this one’s worth it. Simple, durable, and completely leakproof.

### ⭐⭐⭐⭐⭐ Great quality, useful new cap
*by S***N on 4 November 2025*

I've been thinking of getting one of these caps for a while, and I'm glad I finally did. It's really encouraged me to drink more water now I don't have to undo and redo the cap every time. It sounds like a small issue but it makes a difference. The build quality is great as you would expect, absolutely no leaking. The size is a little larger than the basic cap height-wise, but there is no noticeable weight difference. Easy to clean as it comes apart easily. No metal parts so no need to worry about rust. I'd recommend for any Hydro Flask users who like to use straws.

### ⭐⭐⭐⭐⭐ Perfect Fit and replacement
*by D***E on 30 December 2025*

This lid / cap was a perfect replacement for one that got damaged ( affter 2yrs of constant use) - it has saved the much loved , sticker covered bottle for ongoing use! Well pleased!

## Frequently Bought Together

- Hydro Flask Wide Mouth Lids- Accessory for Wide Mouth Water Bottle
- Hydro Flask Replacement Straws 3 Count (Pack of 1)
- Hydro Flask Flex Boot - Accessory Silicone Water Bottle Protector - Dishwasher Safe, BPA-Free, Non-Toxic Black Medium

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**Shop now:** [https://www.desertcart.ie/products/428270286-flex-straw-cap-for-wide-mouth-leakproof-honeycomb-insulated-cap](https://www.desertcart.ie/products/428270286-flex-straw-cap-for-wide-mouth-leakproof-honeycomb-insulated-cap)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-26*