--- product_id: 535265083 title: "FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity" brand: "fitly" price: "€ 58.13" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/535265083-fitly-soft-flask-shrink-as-you-drink-soft-water-bottle store_origin: HR region: Croatia --- # Shrinks as you drink 1100 ml capacity Ultra-lightweight 0.11 kg FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity **Brand:** fitly **Price:** € 58.13 **Availability:** ✅ In Stock ## Summary > 💦 Shrink your bottle, not your adventure! ## Quick Answers - **What is this?** FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity by fitly - **How much does it cost?** € 58.13 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/535265083-fitly-soft-flask-shrink-as-you-drink-soft-water-bottle) ## Best For - fitly enthusiasts ## Why This Product - Trusted fitly brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Eco-Friendly & Safe:** Made from BPA & PVC-free thermoplastic polyurethane for guilt-free, reusable hydration. - • **Pack Light, Move Fast:** Weighing just 0.11 kg, this collapsible flask keeps you agile on every run, hike, or ride. - • **Stay Cool, Stay Refreshed:** Freezable design doubles as an ice pack to keep your drink chilled during intense workouts. - • **Hydrate Without the Bounce:** Innovative shrink-as-you-drink design eliminates sloshing and rattling for seamless movement. - • **Versatile Adventure Companion:** Perfectly sized at 1100 ml and foldable to fit any pocket or pack—ready for running, cycling, climbing, and more. ## Overview The FITLY Soft Flask is a 1100 ml collapsible, ultra-lightweight hydration bottle designed for active professionals. Its unique shrink-as-you-drink technology prevents sloshing, while BPA & PVC-free materials ensure safe, eco-conscious use. Ideal for running, hiking, cycling, and climbing, it fits easily into pockets or packs and can be frozen to keep liquids cool on the go. ## Description FITLY Flasks are ideal for quick drinks on the run. Gobble up a gel, wet a dry throat, or re-hydrate. Designed to be used while running or biking. Stores directly in your front, side, or back pockets. FITLY Flasks shrink as you drink so nothing ever moves, bounces or rattles. ## Features - HYDRATION ON THE MOVE: Our large collapsible running soft flask is a compact and eco-friendly way to stay hydrated on the move! The soft water bottle is the perfect hydration tool for active individuals. Our soft water bottles for runners shrink as you drink, taking up minimal space and won’t slosh around, making it perfect for running, hiking, skiing or any rigorous activity. The FITLY soft flask features a handy23 in (58 cm) long tube and silicone mouthpiece for easy access to hydration. - SHRINKS AS YOU DRINK: Our running vest water bottle is uniquely designed to shrink as you drink. This ensures the water doesn’t slosh around, bounce or rattle. The flexible design of our hydration flask shapes to your hand & body, meaning the soft flask is never unwieldy. Our flexible running flask features an intelligent bite valve & leak-resistant mouthpiece. - STAY LIGHT ON YOUR FEET: FITLY’s collapsible flask is purposely lightweight ensuring your light on your feet and not weighted down by unnecessary bulk. At FITLY, reusability is deeply important to us, and our water bladder is no exception. Enjoy limitless use from our portable soft water bottle for running vest that is 100% BPA & PVC-free. - HYDRATION ON THE MOVE: Our soft flask is specially crafted for vigorous activities such as running, hiking, cycling and climbing. The perfect sporting companion, take it everywhere with you! Our soft water bottle can be folded and tucked into your pocket or bag. Our soft flask water bottle comes in 5 size variations and are freezable so they can double as an ice pack. - DIRECTIONS FOR USE: We recommend rinsing the flask thoroughly before first use. If you experience taste mix ½ a teaspoon of BAKING SODA with water, shake and rinse. Users have also found the following to be useful: Fill with MILK, shake, and rinse. Add drops of lemon. Let an orange peel or tea bag set in the flask for a couple of hours. To hydrate, simply softly bite the mouthpiece and press the soft flask and enjoy! The harder you press, the faster the liquid will exit. ## Technical Specifications | Specification | Value | |---------------|-------| | Additional Features | Collapsable, Lightweight | | Age Range Description | Any Age Group | | Asin | B0BW8FV1DM | | Best Sellers Rank | #2,247 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #155 in Water Bottles | | Bottle Type | Standard Bottle | | Brand Name | FITLY | | Capacity | 1100 ml | | Color | Blue | | Container Type | Collapsible | | Customer Reviews | 4.1 4.1 out of 5 stars (1,346) 4.1 out of 5 stars | | Included Components | F11 | | Item Dimensions W X H | 2.76"W x 5.51"H | | Item Type Name | Running Accessory | | Item Weight | 0.11 kg | | Manufacturer | FITLY | | Manufacturer Part Number | F11 | | Material Type | Thermoplastic Polyurethane | | Material Type Free | Bisphenol A (BPA) Free, Polyvinyl Chloride (PVC) Free | | Model Name | F11 | | Model Number | F11 | | Number Of Items | 1 | | Product Care Instructions | Hand Wash Only | | Recommended Uses For Product | Biking, Climbing, Hiking | | Reusability | Reusable | | Shape | Round | | Specific Uses For Product | Running, Biking, Hiking, Climbing, Cycling | | Sport Type | Climbing, Cycling, Hiking, Running | | Style Name | Sporty | | Theme | Sport | | Unit Count | 1 Count | ## Product Details - **Brand:** FITLY - **Material:** Thermoplastic Polyurethane - **Bottle Type:** Standard Bottle - **Color:** Blue - **Capacity:** 1100 Milliliters ## Images ![FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity - Image 1](https://m.media-amazon.com/images/I/71cXXODCwfL.jpg) ![FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity - Image 2](https://m.media-amazon.com/images/I/710KpneQ4pL.jpg) ![FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity - Image 3](https://m.media-amazon.com/images/I/81INLFaKfTL.jpg) ![FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity - Image 4](https://m.media-amazon.com/images/I/71I8Z2aLEgL.jpg) ![FITLY Soft Flask - Shrink As You Drink Soft Water Bottle for Hydration Pack - Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity - Image 5](https://m.media-amazon.com/images/I/71b93XIKpGL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Convenient and Functional Soft Flask for Hydration *by on Reviewed in the United States May 28, 2024* I recently purchased the FITLY Soft Flask - 12 oz (350 ml) for my running and hiking activities, and it has quickly become an indispensable part of my hydration setup. This soft flask offers a range of features that make it ideal for anyone needing a compact and efficient water bottle for outdoor activities.The design of the FITLY Soft Flask is excellent. The flexible material allows the bottle to shrink as you drink, reducing its size and minimizing sloshing. This feature is particularly useful during runs or hikes, as it ensures the flask remains compact and comfortable to carry. The flask is also lightweight, making it easy to include in my hydration pack or running vest without adding unnecessary bulk.The build quality is impressive. The flask is made from durable, BPA-free materials that are safe and long-lasting. Despite being soft and flexible, it feels sturdy and capable of withstanding regular use. The wide mouth design makes it easy to fill and clean, which is a significant advantage over some other hydration solutions.The cap and nozzle design are both practical and user-friendly. The cap seals tightly, preventing any leaks, and the nozzle allows for easy sipping on the go. It's simple to operate with one hand, which is perfect for maintaining momentum during activities like running or cycling.One of the standout features of this soft flask is its portability. When empty, it folds down to a small size that easily fits into a pocket or pack. This makes it convenient to carry as an extra water source or for use in situations where space is at a premium.Overall, the FITLY Soft Flask - 12 oz (350 ml) is a fantastic hydration solution for runners, hikers, cyclists, and outdoor enthusiasts. Its durable construction, practical design, and compact size make it a highly convenient and functional water bottle. I highly recommend this soft flask for anyone looking for an efficient and reliable way to stay hydrated on the go. ### ⭐⭐⭐⭐⭐ Indestructible! *by on Reviewed in the United States February 5, 2026* I would give this 10 stars if it were an option because 5 doesn’t seem like enough.When you get one you may think it won’t last long but looks are deceiving. I’m pretty tough on these as a general rule and bring them with me when I travel. Not only are these way better than carrying a water bottle while running but they are indestructible.I accidentally ran the flasks through the washing machine and dryer the other day. I thought they’d be ruined but they held up great, even held the remains of water left overs from my last run. They didn’t leak at all.Kinda reminds me of the old Timex watch commercial, “Gets a lickin’ and keeps on ticking” If only everything were built as well as the Fitly. ### ⭐⭐⭐⭐ Pros and cons *by on Reviewed in the United States July 17, 2022* Pros: 1) I wanted something small that my husband and I could carry in our pockets during our daily 5 mile walks. This is perfect. As you can see in the pic, it is slim enough to put in your back pocket.2) We freeze them with the water inside (leaving room for expansion), so it is extra nice on a hot day to have what is basically an ice pack. The pic shows the water frozen inside. I like holding my bottle against the back of my neck to cool me off, and it speeds up the melting process so that I have some water to drink fairly quickly. My husband keeps his in his back pocket for most of our walk, so his remains partially frozen the entire time, but he still has water to drink.Cons: 1) I can’t get the spout to work. I know you’re supposed to bite the soft part gently but even when I do that, squeezing the bottle gently, barely anything dribbles out. So I just remove the cap and drink it that way. No big deal — I like getting a bigger swig of water. It doesn’t drip out of the spout, so that’s good. My husband can drink out of the spout with no problem.2) There is a slight rubber taste. Like drinking out of a rubber ball. I washed the bottles with baking soda and water, and it helped a bit. My husband doesn’t notice it as much as I do. But if you add some powdered, flavored Pedialyte to the water, then it tastes great and it gives you more electrolytes too!These bottles were perfect for our needs despite the cons. ## Frequently Bought Together - FITLY Soft Water Bladder | Shrink As You Drink Soft Flask for Hydration Pack | Folding Water Bottle Ideal for Running, Hiking, Cycling, Climbing & Rigorous Activity - Salomon Soft Flask 150ml/5oz 28 for Hiking and Trail Running, Clear Blue, - Salomon Soft Flask 250ml/8oz 28 for Hiking and Trail Running, Clear Blue, --- ## 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.hr/products/535265083-fitly-soft-flask-shrink-as-you-drink-soft-water-bottle](https://www.desertcart.hr/products/535265083-fitly-soft-flask-shrink-as-you-drink-soft-water-bottle) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-24*