Sub45 and Sub90 come in 2 sizes: XS-S and M-L-XL. To find yours, measure 2 inches below the pectoral muscles/ band line. See how to measure here. If you are in between, consider thickness variations (jacket, etc.) between summer and winter runs.
It is worth spending 30 seconds to properly adjust FITLY to your body shape. FITLY was developed specifically to reach a very high comfort level. If your FITLY is not fitted properly, you will lose one of its key benefit.
Tip: it should feel snug, not tight.
You go through a lot when you run. Your zippers too! With proper maintenance, they’ll perform for decades. Without, they may lock up. Read the blog that explains how to care for your zippers. You’ll be thankful you did!
Wash with mild soap. Rinse with lukewarm water. Many runners take FITLY with them in the shower post workout, rinse and hang upside down top dry. Do not use your washing machine, it will rub the water-resistant coating off. Insert some paper towel in the pockets to speed the drying process up if you need to.
In all cases, rinse all flasks/ladders thoroughly before the first use. Dissolve some baking sodas and soak for 15 min if you experience a taste in the liquid.
Tip: Dry the flask upside down. Insert a wooden spoon (or similar object) to enable air circulation inside the flask.
Your flow stop is probably on, preventing the liquid to pass through. Please watch this quick video explaining what to do: FLOW STOP
Also, if you insert the tube too far inside the flask, the TPU can block the flow.
-FLASK150 fits in the front pockets of all FITLY, except the Sub90 XS-S when filled completely.
-BLADDER500 comes with every Sub90 and fits right in the custom made thermo-pocket. BLADDER500 does not fit in the Sub45
-BLADDER1100 comes with every Sub180 and fits right in the custom made thermo-pocket. BLADDER1100 does not fit in the Sub90 nor the Sub45
You could use any flask with the tubing system as they all share the same system. Note that the Sub45 is designed structurally to hold a certain weight. If you overpack it, you will experience some bouncing at the front straps level.
Always RINSE before first use. Mix a teaspoon of BAKING SODA with lukewarm water, let soak for 15 min, rinse.
Users have also found the following to be useful:
Note: TPU material has been used in millions of products for decades. Our flasks passed the Sensorial Examination for Odor and Taste (Robinson’s test) with a 0/2.5, indicating “no perceptible odor”. In other words, no particle transfer has been found in the liquid after 5 hours at 50°C/122°F.