---
product_id: 411626753
title: "Standard Mouth Flex Straw Cap"
brand: "hydro flask"
price: "$30.45"
currency: USD
in_stock: true
reviews_count: 7
category: "Hydro Flask"
url: https://www.desertcart.us/products/411626753-standard-mouth-flex-straw-cap
store_origin: US
region: United States of America
---

# Leakproof when closed Fits all Hydro Flask Standard Mouth bottles Honeycomb insulation for max temperature retention Standard Mouth Flex Straw Cap

**Brand:** hydro flask
**Price:** $30.45
**Availability:** ✅ In Stock

## Summary

> 🥤 Sip smart, stay cool, and never miss a beat with Hydro Flask Flex Straw Cap!

## Quick Answers

- **What is this?** Standard Mouth Flex Straw Cap by hydro flask
- **How much does it cost?** $30.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/411626753-standard-mouth-flex-straw-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

- • **Leakproof Confidence:** Secure closure ensures zero spills, so you can carry your bottle anywhere without worry.
- • **Hygienic & Convenient:** Dishwasher safe with removable parts for quick, thorough cleaning—because your health matters.
- • **Customizable Flex Straw:** Easily trim the straw to your perfect length—personalized sipping made simple.
- • **Honeycomb Insulated Cap:** Advanced insulation technology locks in your drink’s temperature longer, keeping it refreshingly cold.
- • **Universal Hydro Flask Fit:** Seamlessly compatible with all Standard Mouth bottles for effortless hydration on the go.

## Overview

The Hydro Flask Standard Mouth Flex Straw Cap is a leakproof, honeycomb-insulated accessory designed to fit all Hydro Flask Standard Mouth bottles. Featuring a customizable straw and a flexible strap for easy transport, it ensures maximum temperature retention and hygienic use with dishwasher-safe, removable components. Perfect for active professionals seeking reliable, stylish hydration on the move.

## Description

Buy Hydro Flask Standard Mouth Flex Straw Cap Black online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Fits perfectly - Fits my hydroflask perfectly, old one broke so decided to get a new one with the straw attachment. It also came with a spare straw
Review: Fits perfectly - Fits the specific model

## Features

- Standard Mouth Flex Straw Cap fits all Hydro Flask Standard Mouth Bottles
- Straw is easy to trim to fit your favorite Hydro Flask
- Flex Strap is easy to transport and comfortable to carry
- Honeycomb Insulated cap for maximum temperature retention
- Leakproof when closed so you can reliably sip and transport your refreshment without worry.BPA-Free & Toxin-Free.Removable components for easy cleaning..Dishwasher safe.Flex Straw Cap not intended for use with hot liquids.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09D8RPYKJ |
| Age Range | All Ages |
| Batteries Included? | No |
| Best Sellers Rank | #4,452 in Sporting Goods ( See Top 100 in Sporting Goods ) #45 in Sports Water Bottle Accessories |
| Brand | Hydro Flask |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,249) |
| Date First Available | 28 February 2022 |
| Department | Unisex |
| Features | Honeycomb insulation, leak-proof, dishwasher safe |
| Included Components | Water Bottle Accessory |
| Item model number | SFS001 |
| League | No league name |
| Manufacturer | Hydro Flask |
| Material Type | Plastic |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Product Dimensions | 7.37 x 5.84 x 7.62 cm; 4.54 g |
| Shape | Round |
| Size | standard size |
| Style | Flex Straw |

## Product Details

- **Brand:** Hydro Flask
- **Colour:** Black
- **Item weight:** 5 g
- **Material:** Plastic
- **Style:** Flex Straw

## Images

![Standard Mouth Flex Straw Cap - Image 1](https://m.media-amazon.com/images/I/51rs8Q52D8L.jpg)

## Questions & Answers

**Q: Why so expensive? i can get it cheaper from hydro flask, rei, dick sporting goods, etc.**
A: Sure you can , If dick sporting goods has the same brand and style

**Q: Is this product authentic? Made by Hydroflask?**
A: Hello Robert - Wendy from Tall Ridge here - This Hydro Flask Standard Mouth Insulated Sport Cap purchased from us is authentic. We are an authorized Hydro Flask dealer. Please feel free to check us out. We want you to feel comfortable with your purchase. All Hydro Flask products purchased from us are authentic Hydro Flask products.

**Q: Does this work for the 64 oz growler?**
A: Hello James - Wendy from Tall Ridge here - The Hydro Flask 64 ounce Growler is a Wide Mouth. The Hydro Flask Insulated Sport Cap is for the Standard Mouth bottles only.

**Q: Does it fit a 21 oz?**
A: If the 21 oz bottle you have has a standard opening, not a wide opening, it should fit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits perfectly
*by C***N on 18 September 2024*

Fits my hydroflask perfectly, old one broke so decided to get a new one with the straw attachment. It also came with a spare straw

### ⭐⭐⭐⭐⭐ Fits perfectly
*by M***E on 30 September 2023*

Fits the specific model

### ⭐⭐⭐⭐⭐ Review
*by M***© on 12 August 2025*

Totalement satisfait. J'ai commandé ce couvercle paille pour ma gourde d'une marque très connue qui n'était pas pourvue de ce système. La qualité du joint et de l'embout et des pailles que j'ai dû légèrement couper car trop longues donc parfait. Le test est totalement convainquant et je recommande ce modèle pour votre gourde qui ne sont pas pourvues de ce bouchon paille.

## Frequently Bought Together

- Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle
- Hydro Flask Replacement Straws 3 Count (Pack of 1)
- Hydro Flask Wide Mouth Lids- Accessory for Wide Mouth Water Bottle

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/411626753-standard-mouth-flex-straw-cap](https://www.desertcart.us/products/411626753-standard-mouth-flex-straw-cap)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-21*