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💦 Stay hydrated, stay ahead — the flask that fits your hustle!
The Azarxis TPU Soft Flask is a BPA and PVC-free, ultra-lightweight, collapsible water bottle available in multiple sizes (250ml to 600ml). Designed for active professionals and outdoor enthusiasts, it features a leak-proof bite valve, odorless food-grade TPU material, and a compact foldable design that fits perfectly in hydration vests and running packs. Ideal for running, hiking, cycling, and climbing, it offers durable, eco-friendly hydration on the go with minimal bulk.




















| ASIN | B07HRF8316 |
| Additional Features | Bite Valve, Carry-on, Leak Proof, Lightweight, Lockable Lid |
| Age Range Description | Adult |
| Best Sellers Rank | #14,105 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #455 in Water Bottles |
| Bottle Type | Collapsible Bottle |
| Brand | Azarxis |
| Brand Name | Azarxis |
| Capacity | 0.5 Liters |
| Color | 500ml / 16.9oz with Speed Straw - 2 Pack |
| Container Type | plastic |
| Customer Reviews | 4.4 out of 5 stars 736 Reviews |
| Finish Types | Glossy |
| Item Dimensions W x H | 3.15"W x 9.68"H |
| Item Weight | 118 Grams |
| Manufacturer | Azarxis |
| Manufacturer Part Number | AZ-OS1518-500-2PP |
| Manufacturer Warranty Description | 20-month warranty |
| Material | Thermoplastic Polyurethane |
| Material Type | Thermoplastic Polyurethane |
| Material Type Free | Bisphenol A (BPA) Free |
| Model Name | TPU Soft Flask |
| Model Number | AZ-OS1518 |
| Number of Items | 2 |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Fit for Cycling, Running, Jogging, Marathon, Trail Racing, Hiking, Trekking, Backpacking, Camping, Climbing, Fishing |
| Reusability | Reusable |
| Shape | Oval |
| Special Feature | Bite Valve, Carry-on, Leak Proof, Lightweight, Lockable Lid |
| Sport Type | Fit for Cycling, Running, Jogging, Marathon, Trail Racing, Hiking, Trekking, Backpacking, Camping, Climbing, Fishing |
| Style Name | All-season |
| Theme | Sport |
| Unit Count | 2 Count |
P**.
Perfect for almost evey run or hike
Bought these to run my 108K ultra, and they worked great, easy to fill, and lightweight. I've used them on 20k, 50k, and 100k runs, as well as all-day hikes, and they are great. I like them because they have twice the capacity of my stock bottles in my running pack. They are tall enough to drink while still in the pack and easy to pull out for a quick refill at the aid stations or in the cool mountain streams. So far so good.
R**9
Great deal!
High quality without the high price! These are perfect for my vest making water easily accessible without removing from pockets.
L**.
Work great, check measurements of flask vs pockets for running vest
Check the pocket you're going to be sticking these into! I have an Ultimate Direction Ultra Vest 5.0. With the 500ml flasks and the fact that the pockets are higher on the vest, the flasks just stuck up without being able to fit all the way in. This lead me to be worried that I may have leakage or that the flask will just fall out. If I'd known that, I would've gotten smaller flasks or maybe a different brand. These flasks are great, don't get me wrong, but just check that they'll fit where you want to them to fit into.
A**R
So far very happy
I have been using these flasks in my trail running vest for a few months now so I have had plenty of time to test the durability. Easy to clean and the straw works well. I carry these in the front pockets of the running vest and with the extended straw it is easy to lean over while running and suck out the water. Highly recommend for the price. I saw other reviews about plastic smell. I found that this was minimal and after a few uses was no longer present.
H**S
Son excelentes.
Excelente compra, resistentes y la medida necesaria para llevar liquido. Los recomiendo absolutamente.
X**R
Water Bottle
Ran a 25k with my son. He and I used a bottle and they were compatible with our different vests. The item worked well, no issues. Great purchase, well worth the price.
M**.
Taller than my other 500’s
I got these to replace the 500ml flasks that came with my vest (of the same brand). The flasks I have just have the sport valve and I literally got a crick in my neck drinking from them so I thought the taller straw might be better :) well it is! I figured out a couple of miles in that I could tuck the straw into a pocket on the shoulder of my vest to keep it from poking me in the jaw (yeah it took me that long to figure out…) and while I do wish I could get water quicker out of the straw, it will definitely do! The flask is taller and thinner than my old ones which I actually don’t like because the flask gets floppy quick and you have to shove it down into the pockets further and cinch them up to keep it from moving around but again, it will definitely do. All-in-all I love them and I’m glad I didn’t spend more! That might change down the road but for now they don’t leak and they keep me hydrated!
L**3
Great Bottles!
I had another brand that I used in my cycling/running vest, but I found that these are definitely my go to bottles! Very nice fit in all of my vests and the long straws help me drink on the go without having to bend my head down as far. Will definitely buy again!
R**I
Praticità d'uso
E' un prodotto che già conoscevo, le uso insieme allo zaino da trail
F**.
Super gourdes
Article conforme à mes attentes, nickel
D**E
Lo recomiendo
Me gusta que lo puedes usar con o sin las pajillas.
S**R
trailrunning
Für mein trailrunning super! Strohhalm ist eine gute Idee damit die Flasche nicht rausnehmen muss aus meinem trailrunning Rucksack. Am Anfang riecht es mach Plastik aber ok, waschen über Nacht und fertig. Gegenüber Salomon was ich vorher hattey absolut in echt benachteiligt im Gegenteil das selbe und viel billiger
A**H
Excellent bottles
Good quality bottles. Tested them for leaks and they appear to be completely leak free. Some people mentioned an odd taste they could not get rid of. What I did was mix some lime juice with water, filled up both bottles and left overnight. Rinsed out a couple of times, and I can't detect any odd tastes. All in all, very pleased with my purchase.
Trustpilot
1 day ago
2 months ago