With a collapsible design, molded tops and bottoms, RF-welded seams, and durable TPU construction, the Hydraflask SoftFlask SF350 safely and conveniently carries 12 ounces of water or other fluids. Measuring 7.75” x 3.5” when full, the flask collapses almost entirely when empty.
The SoftFlask SF350 is equipped with a 42 mm-wide screw cap and a high-flow rate silicone bite valve. The TPU construction of the flask is both BPA and PVC-free. An integrated dust cover protects the bite valve and a finger loop attachment makes carrying easy.
Available in your choice of colors, the SoftFlask SF350 is dishwasher safe (top rack) and backed by Hydrapak’s No-Leak warranty.
- 12 oz (350 ml) capacity
- 7.75” x 3.5”
- 1.8 oz
- Collapsible for easy use, storage, and transport
- Molded top and bottom provides 3 dimensional shape and lashing options
- Constructed with TPU (thermoplastic polyurethane) for strength and flexibility
- RF welded to create superior bonds at a molecular level
- 42 mm wide screw cap for easy filling and cleaning
- Twist on/off for valve for “on demand” use and secure “no-leak” transport
- High flow rate from soft silicone bite valve
- Dust cover
- Finger loop attachment
- ISPO Design Award Winner
- Dishwasher safe (top rack)
- BPA free/PVC free/Meets or exceeds FDA & EU regulations
- No-Leak product lifetime warranty
Best Use Hiking, Running/Fitness
Real Customer Reviews
Earn Gear Points for Reviewing Products
Join our FREE Inside Edge program and receive 20% off a full-price item. Earn discount points for reviewing items you purchase and receive exclusive discounts.
What are points?
As a member you can share reviews of items you purchase and we'll reward you with discount points valued at 5% of the item's original purchase price.
It’s EASY and it’s FREE.Sign Up Today »