---
product_id: 545274084
title: "40 OZ WIDE FLEX STRAW CAP BLACK"
brand: "hydro flask"
price: "S$110"
currency: SGD
in_stock: true
reviews_count: 7
category: "Hydro Flask"
url: https://www.desertcart.sg/products/545274084-40-oz-wide-flex-straw-cap-black
store_origin: SG
region: Singapore
---

# Leakproof Flex Straw Cap Wide Mouth, ice-cube friendly Keeps drinks cold 24h 40 OZ WIDE FLEX STRAW CAP BLACK

**Brand:** hydro flask
**Price:** S$110
**Availability:** ✅ In Stock

## Summary

> 💧 Sip smart, stay cool, and never miss a beat.

## Quick Answers

- **What is this?** 40 OZ WIDE FLEX STRAW CAP BLACK by hydro flask
- **How much does it cost?** S$110 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/545274084-40-oz-wide-flex-straw-cap-black)

## 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

- • **Sip Without Spills:** Innovative leakproof Flex Straw Cap lets you drink on-the-go with zero mess.
- • **Stay Chill All Day:** TempShield double-wall vacuum insulation locks in cold for 24 hours—hydrate like a pro.
- • **Ice-Friendly Wide Mouth:** Easily add ice cubes or clean with no hassle—refreshment made simple.
- • **Vibrant & Durable Finish:** Color Last powder coat resists fading and keeps your bottle looking sleek and fresh.
- • **Built to Last & Taste Pure:** 18/8 pro-grade stainless steel ensures durability and no flavor transfer—taste your water, not the bottle.

## Overview

The Hydro Flask 40 OZ Wide Flex Straw Cap in Black combines cutting-edge TempShield double-wall vacuum insulation with a leakproof Flex Straw Cap, keeping beverages cold for up to 24 hours. Crafted from durable 18/8 pro-grade stainless steel, it offers pure taste without flavor transfer. Its wide mouth design is perfect for ice cubes and easy cleaning, while the Color Last powder coat ensures a vibrant, long-lasting finish. Ideal for professionals who demand style, functionality, and hydration on the move.

## Description

A 40 oz Wide Mouth water bottle with our leakproof Flex Straw Cap—easy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to 24 hours.

Review: Love it - I like it. The thing I like is it keeps the water cold for 24 hours, very nice. Also, I use it with me in the pharmacy. Just make sure it is full to keep me hydrated. It is nice-looking and useful.
Review: Bad quality - Got RUST inside after 2 months of occasional usage. How can good quality stainless steel get rusted? I would like to return this item. Would product team kindly contact me

## Features

- TempShield️ double-wall vacuum insulation keeps contents cold up to 24 hours
- Insulated Flex Straw Cap is leakproof when closed
- Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer
- Wide Mouth opening is ice-cube friendly
- Color Last powder coat stays clean and colorful

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BNLWRF5V |
| Best Sellers Rank | #20,314 in Sporting Goods ( See Top 100 in Sporting Goods ) #882 in Sports Water Bottles |
| Brand | Hydro Flask |
| Capacity | 1.13 kg |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,019) |
| Date First Available | 24 February 2023 |
| Item Weight | 649 g |
| Material | Stainless Steel |
| Model Number | W40BFS001 |
| Product Dimensions | 14.61 x 14.61 x 22.86 cm; 649 g |
| Special Features | Double Wall, Leakproof |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 1.13 kg
- **Colour:** Black
- **Recommended uses for product:** Water
- **Special features:** Double Wall, Leakproof

## Images

![40 OZ WIDE FLEX STRAW CAP BLACK - Image 1](https://m.media-amazon.com/images/I/71Jnfc1bObL.jpg)

## Available Options

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

## Questions & Answers

**Q: Which size will fit in a standard car cup holder?**
A: The 12 and 24 oz hydro flask fit in the standard car size cup holders. Excluding the smallest cup holders in some vehicles. The 32-40oz does not fit in standard vehicle cup holders and would require a cup holder adapter.

**Q: Is the 32 oz wider than the 40 oz? It seems like it in the picture, but not in the details**
A: 32 and 40 oz should both be the same size mouth the only difference is the 40 oz is about 33% taller than the 32

**Q: Is straw replacable and washable?**
A: Hello, Miguel from Tall Ridge here! The straw on this bottle is replaceable and can be washed. Please let us know if you find this helpful.

**Q: How many straws does this come with?**
A: It comes with two straws.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love it
*by A***H on 3 September 2024*

I like it. The thing I like is it keeps the water cold for 24 hours, very nice. Also, I use it with me in the pharmacy. Just make sure it is full to keep me hydrated. It is nice-looking and useful.

### ⭐ Bad quality
*by S***T on 6 September 2024*

Got RUST inside after 2 months of occasional usage. How can good quality stainless steel get rusted? I would like to return this item. Would product team kindly contact me

### ⭐⭐⭐⭐⭐ Review
*by S***M on 13 October 2024*

I like this water bottle a lot. It keeps the water cool and fresh. I like the straw and the color.

## Frequently Bought Together

- Hydro Flask Water Bottle - Insulated Stainless Steel - Wide Straw Lid, Non Spill, Leakproof in 40 Oz Black
- Hydro Flask Flex Boot - Accessory Silicone Water Bottle Protector - Dishwasher Safe, BPA-Free, Non-Toxic Black Medium
- Hydro Flask Wide Mouth Lids- Accessory for Wide Mouth Water Bottle

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**Shop now:** [https://www.desertcart.sg/products/545274084-40-oz-wide-flex-straw-cap-black](https://www.desertcart.sg/products/545274084-40-oz-wide-flex-straw-cap-black)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-19*