---
product_id: 652270218
title: "40 Oz Wide Mouth Flex Straw Cap Moonshadow"
brand: "hydro flask"
price: "HK$951"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/652270218-40-oz-wide-mouth-flex-straw-cap-moonshadow
store_origin: HK
region: Hong Kong
---

# Leakproof Flex Straw Cap Dishwasher Safe Durability 24H Cold Retention 40 Oz Wide Mouth Flex Straw Cap Moonshadow

**Brand:** hydro flask
**Price:** HK$951
**Availability:** ✅ In Stock

## Summary

> 💧 Stay Cool, Sip Smart, Own the Day

## Quick Answers

- **What is this?** 40 Oz Wide Mouth Flex Straw Cap Moonshadow by hydro flask
- **How much does it cost?** HK$951 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/652270218-40-oz-wide-mouth-flex-straw-cap-moonshadow)

## 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

- • **Ready for Anything:** Dishwasher safe and built tough to keep your Hydro Flask vibrant and ready for your busy lifestyle.
- • **Ice-Cold All Day Long:** TempShield double-wall vacuum insulation keeps your drink refreshingly cold for a full 24 hours.
- • **Wide Mouth, Easy Fill:** Generous 40 oz capacity with a wide mouth for quick ice loading and easy cleaning.
- • **Pure Taste, Every Time:** Pro-grade stainless steel ensures no flavor transfer—your water tastes fresh, always.
- • **Sip in Style, Leak-Free:** Effortless one-hand sipping with a secure, leakproof Flex Straw Cap—no spills, no stress.

## Overview

The Hydro Flask 40 oz Wide Mouth Flex Straw Cap in Moonshadow combines cutting-edge TempShield insulation with a leakproof, easy-to-use straw cap. Crafted from durable stainless steel, it keeps beverages cold for 24 hours, ensures pure taste with no flavor retention, and is dishwasher safe for effortless maintenance. Perfect for professionals on the go who demand style, function, and reliability.

## Description

A 40 oz Wide Mouth water bottle with Hydro Flask's 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.

## Features

- THE BEST BOTTLE: A 40 oz Wide Mouth water bottle with Hydro Flask's 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.
- 24 HOURS COLD: Double-wall vacuum insulation keeps drinks hot or cold for hours. The insulated water bottle keeps beverages cold for 24 hours. The TempShield insulation keeps drinks cold all day.
- LEAKPROOF: Say goodbye to leaky water bottles. The Flex Straw Cap is leakproof when closed. Simply close it shut and toss it into your bag without worry. Sip effortlessly with one hand, thanks to the easy-to-use straw design. Click it shut, and rest easy knowing your drink stays securely sealed all day.
- PURE TASTE: Durable pro-grade stainless steel ensures pure taste and no leftover flavor transfer. So, today's water won't have any taste of yesterday's iced tea.
- DISHWASHER SAFE: Easy to use and easy to clean, just dissasembler the straw lid and toss the lid and bottles into the dishwasher. Designed to keep bright color, being dishwasher safe means your favorite Hydro Flask is always at-the-ready.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Hydro Flask |
| Model Number | W40BFS504 |
| Colour | Moonshadow Purple |
| Product Dimensions | 14.61 x 14.61 x 22.86 cm; 639.57 g |
| Capacity | 1.13 kg |
| Material | Stainless Steel |
| Special Features | Vacuum Insulated |
| Item Weight | 640 g |

## Product Details

- **Brand:** Hydro Flask
- **Capacity:** 1.13 kg
- **Colour:** Moonshadow Purple
- **Recommended uses for product:** Water
- **Special feature:** Vacuum Insulated

## Images

![40 Oz Wide Mouth Flex Straw Cap Moonshadow - Image 1](https://m.media-amazon.com/images/I/71oZiN+DYQL.jpg)

## Available Options

This product comes in different **Colour Name, Style Name** options.

## Frequently Bought Together

- HYDRO FLASK Wide Mouth vacuum insulated stainless steel water bottle with leakproof closeable straw lid for cold water drinks, sports, travel, car and school
- Hydro Flask Flex Boot - Accessory Silicone Water Bottle Protector - Dishwasher Safe, BPA-Free, Non-Toxic
- Hydro Flask Travel Tumbler Stainless Steel Insulated Cup with Lid and Straw for Cold Water and Drinks for Sports, School, Work, Car, Travel and Weekends

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**Shop now:** [https://www.desertcart.hk/products/652270218-40-oz-wide-mouth-flex-straw-cap-moonshadow](https://www.desertcart.hk/products/652270218-40-oz-wide-mouth-flex-straw-cap-moonshadow)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-26*