







💦 Stay light, stay fast, stay hydrated — the flask that moves with you!
The FITLY Soft Flask is a 400ml collapsible water bottle designed for active professionals who demand convenience and performance. Its unique shrink-as-you-drink design prevents sloshing and bounce, while the lightweight, BPA & PVC-free material ensures safe, eco-friendly hydration. Ideal for running, hiking, cycling, and climbing, this foldable flask fits easily into pockets or vests and features a leak-resistant bite valve for quick, hands-free sipping.









| ASIN | B0BBG713HW |
| Best Sellers Rank | #1,031 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #3 in Camping & Hiking Hydration Flasks |
| Bottle Type | Collapsible Bottle |
| Brand | FITLY |
| Brand Name | FITLY |
| Capacity | 400 Milliliters |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (3,458) |
| Date First Available | November 26, 2020 |
| Global Trade Identification Number | 07432112146117 |
| Included Components | F4B |
| Item Dimensions LxWxH | 2.76 x 2.76 x 7.87 inches |
| Item Package Dimensions L x W x H | 8.23 x 4.13 x 1.3 inches |
| Manufacturer | FITLY |
| Material | Thermoplastic Polyurethane |
| Material Type Free | BPA & PVC Free |
| Model Name | F4B |
| Number of Items | 1 |
| Package Information | Bottle |
| Package Weight | 0.03 Kilograms |
| Part Number | F4B |
| Product Care Instructions | Hand Wash Only |
| Product Dimensions | 2.76"W x 7.87"H |
| Recommended Uses For Product | Climbing, Cycling, Running |
| Reusability | Reusable |
| Shape | Round |
| Size | 13.5 Ounces |
| Special Feature | Folding,Lightweight,Valve |
| Specific Uses For Product | Running, Hiking, Cycling, Climbing |
| Sport Type | Climbing, Cycling, Hiking, Running |
| Style | sporty |
| Theme | Sport |
| Unit Count | 1.0 Count |
E**.
AWESOME accessory to enhance my runs and keep me hydrated !!
When I first got into running long distance a few years ago I tried so many iterations of bottles - this by far is my favorite! It’s a solid design, holds just the right amount of water for me and fits in my run vest so I can be hands free, plus it doesn’t break the bank. I’ve also weirdly enough put warmer water in it for winter running! They last a long time - the spout makes the water easy to access and if I don’t bring my vest it’s light and hand sized, making it easy to carry. All in all great functionality. Also their customer service is super friendly and knowledgeable! Rare to have a person on the line AND one who’s friendly.
K**Y
Great for runners
I used this for the first time on a run yesterday in the 95 degree heat. I would give the flask 6 stars if I could. It’s designed perfectly for runners. It sat unnoticeably in my pocket and did not leak at all. And required minimal effort to take a sip. We’ll see how long it lasts but it may be one of the best gift I have received in the past few years.
R**T
Great for skiing
Very convenient to carry in the pocket of a ski jacket.
S**R
Easy to use soft flask for running!
This handheld soft flask is great and easy to carry with me on my runs. Easy to use. Has a slight plastic taste at first but I’ve soaked it in hot soapy water and that has helped. The little pocket on the hand held “carrier” works well to hold my keys and a small snack. Wished I’d found it sooner! Good quality. Easy to use and carry!
W**Y
So far this is a love/hate thing
Update on this, the seller reached out and was very interested in what was going on, great customer support for that. The reason for the 4 stars is because this still feels loose in my hand. When the bottle goes down, i still flip it around and have to hand grip it. No matter what I try. Here's where Im at with this. I LOVE the idea of the smaller water bottle in your hand and not carrying some oversized jug. However..... * When the bottle gets low, you have to switch it from above your hand to inside, if not you wont be able to get the rest of the water out. * The wrist strap should be able to tie closer to your hand. Its very loose when again the water bottle is not full. I find it slipping and have to keep my hand clenched so it wont slip off. * The drinking method does take a minute to get use to, its not just sucking water. You have to bite and pinch the end to get the water to come out. Overall its a much better mouse trap thats for sure. But there are some things that could be refined for sure.
S**O
Good for short runs
Solid small collapsible bottle for shorter runs
M**N
Great
Excellent
T**N
Easy to use flask that doesn’t leak
I use this flask on my long runs. Perfect size and fits easily into my running vest. It’s easy to use while running and does not leak. Love the hot pink color.
N**T
Maraton ve orta mesafe koşulları için çok güzel.
T**X
I love using soft water bottles because they don't take up much space. They are lightweight, flexible and collapsable which is ideal for when I go running! And this one fits perfectly into my waist bag :) It's also leakproof and I did not notice any bad taste in my water plus I really like this type of mouthpiece!
A**R
Filled it with water and left it on the counter. It leaked. Tried to tighten it up even further, kept leaking. Useless
A**.
Después de probar varias marcas y precios, entre ellas las de decathlon, os puedo asegurar que esta pequeña y flexible botellita es cómoda de llevar en bolsillos de mallas o mochilas de Trail. Lo mejor de todo es que el agua NI SABE a plástico, como si me pasaba con las anteriores compradas. Muy recomendable. También he vomitado la de 500 ml.
U**O
Storleken var perfekt. Smakar plast när man dricker ur den. Läckte lite då locket är svårt att få på helt rätt
Trustpilot
1 day ago
2 months ago