---
product_id: 632244107
title: "SkyFlask 350mL (Malibu Blue) - Foldable Soft Hip Flask for Running - (500ml) - Adjustable Wristband, Splash Plug"
brand: "hydrapak"
price: "€ 54.85"
currency: EUR
in_stock: true
reviews_count: 9
category: "Hydra Pak"
url: https://www.desertcart.ie/products/632244107-skyflask-350ml-malibu-blue-foldable-soft-hip-flask-for-running
store_origin: IE
region: Ireland
---

# 42mm SpeedFill leak-proof cap 350mL optimal hydration capacity Ambidextrous soft thumb loop grip SkyFlask 350mL (Malibu Blue) - Foldable Soft Hip Flask for Running - (500ml) - Adjustable Wristband, Splash Plug

**Brand:** hydrapak
**Price:** € 54.85
**Availability:** ✅ In Stock

## Summary

> 💦 Run Light, Hydrate Right — The Flask That Moves With You

## Quick Answers

- **What is this?** SkyFlask 350mL (Malibu Blue) - Foldable Soft Hip Flask for Running - (500ml) - Adjustable Wristband, Splash Plug by hydrapak
- **How much does it cost?** € 54.85 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/632244107-skyflask-350ml-malibu-blue-foldable-soft-hip-flask-for-running)

## Best For

- hydrapak enthusiasts

## Why This Product

- Trusted hydrapak brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Refill in a Flash:** 42mm SpeedFill cap lets you top up instantly at any hydration station—no spills, no delays.
- • **Clean & Taste Pure:** BPA-free, easy to clean with removable top—keeps your water tasting fresh run after run.
- • **Hydrate on the Fly:** 350mL capacity perfectly sized for quick sips during your run—never overburden your pace.
- • **Grip Without Limits:** Ambidextrous soft thumb loop and adjustable strap ensure a secure, fatigue-free hold in either hand.
- • **Featherweight & Foldable:** Ultra-light 41g design folds flat as you drink, minimizing bounce and bulk in your pocket or belt.

## Overview

The HydraPak SkyFlask 350mL is a foldable, ultra-lightweight soft flask designed for runners who demand convenience and performance. Featuring an ambidextrous padded thumb loop and adjustable wrist strap, it offers a secure, comfortable grip. Its 42mm SpeedFill leak-proof cap enables rapid refills on the go, while the soft TPU material folds as you drink to reduce water sloshing. BPA-free and easy to clean, this flask is the perfect hydration companion for millennial professionals who value efficiency and style in their active lifestyle.

## Description

"Among our ultra-light range, the 500ml is so light you might forget you have it on you. Weighing just over 40g, it's an optimal source of hydration, no matter your running style. Its soft material fits most pockets and shrinks when drinking to minimize water movement. Topped with our SpeedFill cap for quick refills at the rescue station, you can use it with or without a tube. Ultra light, ultra practical. Package Included: UltraFlask 500ml SpeedFill Cap Drink Tube Bite Valve Basic Care and Use Instructions Specifications: Capacity: 500ml Weight: 41g Dimensions: 186mm x 58mm Material: TPU, PP, Silicone, POM"

Review: Simple, lightweight, easy to use. - This was sent by Parcelforce who, unlike most desertcart deliveries, didn't just use their discretion and leave it out of sight. I had to give them instructions where to leave it on their second attempt. However, it still arrived within only a couple of days of ordering it. I chose the 350mm size on the basis that I wanted to keep the weight down, and if I needed more water than that, I'd carry it on my belt or in my Camelbak. Sizes can be deceptive. It seemed so small that I actually brim filled it and emptied it into a measuring jug just to make 100% sure it really was 350 ml. It is. For those who aren't quite sure what 350 ml is, this drinks bottle holds slightly more than a standard cola can (330 ml), or slightly less than half a standard wine bottle (750 ml). On a 5 -10 k run, I find there's enough for a sip or two when my watch beeps at the end of each km, and a little bit left as a reward at the end of the run. The bottle is well made and feels tough. You can unscrew the entire top for cleaning or drying, or fill it quickly and easily with the flip top. Brim fill it, close the lid, then suck or squeeze the small amount of air out and the water inside won't slosh around. Then to drink, just bite the nozzle and either suck, or if you prefer, squeeze the bottle. The strap and thumb loop arrangement is simple but works. I watched a few videos before choosing this. There are many soft flasks for runners which come in fabric or neoprene covers with zipped pockets for keys, card, phone, etc. I saw all that as extra bulk and weight in my hand so I went for this simple and lightweight option. I'm pleased with my choice. This bottle is easy and pleasant to use, and much easier to drink from on the move than a hard bottle. Hint: if you want to drain the very last drop, bite the nozzle and blow lightly to reinflate the bottle, then you can tip the last drop towards the nozzle. Some reviewers have mentioned a chemical/plastic taste in the water, but I have not noticed anything. I'm usually very sensitive to unpleasant tastes and smells, but the water in this bottle just tastes like water. (Update: after a few runs, the taste is noticeably less strong.) A simple, well designed product. Update: so pleased with it that when the heat wave came along, I ordered the 500 ml version. Slightly bulkier, of course, but equally well designed. The more I use these bottles, the more pleased I am that I bought them.
Review: Hope the plastic taste goes away - It works ok & if it were not for the very plastic taste it gives water it would be a great product. But it does so one star.

## Features

- AMBIDEXTRE - Featuring an ambidextrous fit, the SkyFlask can be held with any hand, with or without the thumb loop.
- ADJUSTABLE HAND STRAP - Strap tightens for a precise fit.
- THUMB LOOP - The thumb loop is soft and padded and allows you to hold the flask in either hand without having to grab or squeeze it.
- SPEEDFILL CAP - The 42 mm SpeedFill leak-proof cap allows the bottle to be refilled quickly
- LIGHTWEIGHT AND COMPACT - The soft material fits your hand and folds when the bottle is empty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CSR7K38Y |
| Batteries required | No |
| Best Sellers Rank | 29,875 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 352 in Cycling Bottles |
| Care instructions | Hand Wash Only |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,068) |
| Date First Available | 25 Jan. 2024 |
| Included components | 1 Bottle |
| Is mould resistant | Bisphenol A (BPA) Free |
| Item model number | SP356HP |
| Item weight | 2.1 Ounces |
| Product Dimensions | 7.11 x 7.11 x 20.57 cm; 59.53 g |
| Specific uses | running |

## Product Details

- **Bottle type:** Sports Bottle
- **Brand:** HydraPak
- **Capacity:** 350 Millilitres
- **Colour:** Blue
- **Material:** Plastic

## Images

![SkyFlask 350mL (Malibu Blue) - Foldable Soft Hip Flask for Running - (500ml) - Adjustable Wristband, Splash Plug - Image 1](https://m.media-amazon.com/images/I/41bll+P+zkL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Simple, lightweight, easy to use.
*by M***N on 12 May 2025*

This was sent by Parcelforce who, unlike most Amazon deliveries, didn't just use their discretion and leave it out of sight. I had to give them instructions where to leave it on their second attempt. However, it still arrived within only a couple of days of ordering it. I chose the 350mm size on the basis that I wanted to keep the weight down, and if I needed more water than that, I'd carry it on my belt or in my Camelbak. Sizes can be deceptive. It seemed so small that I actually brim filled it and emptied it into a measuring jug just to make 100% sure it really was 350 ml. It is. For those who aren't quite sure what 350 ml is, this drinks bottle holds slightly more than a standard cola can (330 ml), or slightly less than half a standard wine bottle (750 ml). On a 5 -10 k run, I find there's enough for a sip or two when my watch beeps at the end of each km, and a little bit left as a reward at the end of the run. The bottle is well made and feels tough. You can unscrew the entire top for cleaning or drying, or fill it quickly and easily with the flip top. Brim fill it, close the lid, then suck or squeeze the small amount of air out and the water inside won't slosh around. Then to drink, just bite the nozzle and either suck, or if you prefer, squeeze the bottle. The strap and thumb loop arrangement is simple but works. I watched a few videos before choosing this. There are many soft flasks for runners which come in fabric or neoprene covers with zipped pockets for keys, card, phone, etc. I saw all that as extra bulk and weight in my hand so I went for this simple and lightweight option. I'm pleased with my choice. This bottle is easy and pleasant to use, and much easier to drink from on the move than a hard bottle. Hint: if you want to drain the very last drop, bite the nozzle and blow lightly to reinflate the bottle, then you can tip the last drop towards the nozzle. Some reviewers have mentioned a chemical/plastic taste in the water, but I have not noticed anything. I'm usually very sensitive to unpleasant tastes and smells, but the water in this bottle just tastes like water. (Update: after a few runs, the taste is noticeably less strong.) A simple, well designed product. Update: so pleased with it that when the heat wave came along, I ordered the 500 ml version. Slightly bulkier, of course, but equally well designed. The more I use these bottles, the more pleased I am that I bought them.

### ⭐ Hope the plastic taste goes away
*by A***N on 11 January 2024*

It works ok & if it were not for the very plastic taste it gives water it would be a great product. But it does so one star.

### ⭐⭐⭐⭐ Doesn’t fit most running vests
*by S***S on 8 June 2023*

Description said fits running vests. I tried it with 3 Salomon packs, Inov8, Montane, Ultimate Direction, Patagonia and Dynafit vests and it doesn’t fit in any of the flask pockets. It can be rammed but that kind of makes the other pouches unusable which kind of misses the point. It’s a great item but the base of it is too wide to use in running vests. Ok for waist belts and side pouches but not for flask pouches. Fits best in the wider Ultimate Direction packs if you really want to use an insulated flask. Would be good for an OMM accessory pouch. Bought for the Montane Spine Race.

## Frequently Bought Together

- HydraPak SkyFlask Speed - Collapsible Handheld Running Water Bottle (350ml, 500ml, 500ml Insulated) - Adjustable Strap, Lightweight, Spill-Proof Cap
- LMNT Zero Sugar Electrolytes - Variety Pack | Drink Mix | 12-Count
- Honey Stinger Energy Gel Variety Pack | 5 Packs Each of Gold and Organic Fruit Smoothie | Gluten Free & Caffeine Free | For All Exercises | Sports Nutrition for Home & Gym, Pre and Mid Workout

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-18*