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💦 Fold, fill, and fuel your next adventure—hydration that keeps up with your hustle!
The TRIWONDER Soft Flask is a 250ml BPA-free, collapsible water bottle made from food-grade TPU. Designed for active professionals and outdoor enthusiasts, it features a space-saving foldable design, easy-to-clean wide mouth, and a convenient nozzle for quick hydration. Lightweight and durable, it’s ideal for running, cycling, hiking, and climbing, ensuring fresh, safe water wherever your day takes you.













| ASIN | B06XRFVZTV |
| Age Range Description | Adult |
| Best Sellers Rank | 6,287 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 21 in Cycling Hydration Packs |
| Bottle Type | Collapsible Bottle |
| Bottle type | Collapsible Bottle |
| Brand | TRIWONDER |
| Capacity | 250 ml |
| Colour | 01 250ml/8.45oz - Pack of 2 |
| Container Type | water bottle |
| Country of Origin | China |
| Customer Reviews | 4.2 out of 5 stars 1,197 Reviews |
| Finish | Glossy |
| Included Components | soft flask |
| Item Dimensions W x H | 6W x 22.6H centimetres |
| Item Type Name | Soft Water Bottle |
| Item Weight | 0.05 Kilograms |
| Manufacturer | TRIWONDER |
| Material | Thermoplastic Polyurethane |
| Material Type Free | Bisphenol A (BPA) Free, Polyvinyl Chloride (PVC) Free |
| Model Name | Os1518 |
| Model Number | OS1518-250-2P |
| Number of Items | 2 |
| Part Number | OS1518-250-2P |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Running |
| Reusability | Reusable |
| Shape | Round |
| Special Features | Collapsable |
| Special feature | Collapsable |
| Sport Type | Running |
| Theme | Fantasy |
| Unit Count | 1.0 count |
N**N
Great quality
Bought these to replace previous. Excellent fit for my pack. Easily cleaned, durable and perfect size for the runs that I do.
J**S
Water Bottles
Perfect size for shorter runs. Takes a little time ro get used to the top/ drinking from the top...
A**E
Great
Great
T**N
Perfect size
Love these little soft flasks. I needed a flask that was small enough not to get in the way when put in my running belt but big enough to hold a decent amount of fluid. These flasks do both. Love them
W**.
Though pricey, good piece of kit
I've used these a few times and so far no musty smell. They work well as you need to bite down on the spout and squeeze the bottle to get the water so it won't just flow out accidentally.
K**A
Great appropriate sized and shaped bottle
Perfect sized run bottle, fits in legging pocket. Cap could be better style to open and drink water while running .
E**N
Leaking!!!
Was really disappointed that one of the flasks is leaking and is therefore not usable! And it leaks a lot, no matter how tight you screw the cap on.
T**M
Triwonder
They leak from the cap.
L**R
Die Besten bisher
Es sind mit Abstand die besten Soft-Flaschen die ich bisher hatte. Die Flaschen halten dicht, sind leicht zu reinigen, passen hervorragend in meine Laufweste und das Wasser schmeckt auch nicht eklig nach Plastik. Der Preis ist absolut in Ordnung, außerdem können meiner Meinung nach diese Flaschen hier mit den weitaus teureren Marken-Flaschen mithalten. Nachtrag 09/2026: auch nach mehreren Jahren sehr regelmäßiger Benutzung (mehrmals pro Woche) funktionieren beide noch hervorragend, sind dicht und ich bin nach wie vor sehr zufrieden mit diesen Flasks :)
P**C
Perfectas para trail
Material muy resistente, se ve grueso y a prueba de cortes y grietas por desgaste. Casi sin olor a plástico (otras marcas nada más sacarlas del envoltorio tiran para atrás y luego el sabor no se va hasta varios meses después). Acople perfecto al chaleco de hidratación. Compra totalmente recomendada, mucho más asequible y de la misma calidad que la principal marca de accesorios de trail, y encima en paquete de dos unidades!
C**N
Review
Found that the bottles were quite bulky when filled with water. Very hard to keep them in the pockets especially if labile phone in zipped pocket. Any pressure on bottle & water came out of them. My mobile got wet
シ**ゲ
匂いがやっぱり気になります。
色々匂い消しを試してみましたがやっぱり気になりますね。
D**0
A must for running
I have the two water bags with just the bite nozzle and LOVE THEM! I’ve had them for over a year now and I use them on all my long runs. No leaking, easy to drink from and I can squeeze them into my vest pockets. Since I have the two I use one for just water and the other of Electrolytes. They’re perfect. Added plus - they’re easy to squirt water to give my dog when he runs with me lol he loves them too!
Trustpilot
1 day ago
2 weeks ago