The FITLY FLASK150 is the most compact soft flask in the FITLY lineup -- a 5oz (150ml) collapsible flask built for runners who want quick-access hydration without bulk. Its shrink-as-you-drink design eliminates sloshing and bouncing as the flask compresses onto itself with each sip. Small enough to fit two in a SUB45 front pocket, and compatible with every FITLY running pack system.
Noteworthy FLASK150 features include:
• 5 oz (150 ml) capacity
• Two sizes: Black/Blue 5.5 x 2.75 in; other colors 6 x 2 in
• TPU construction, 100% BPA and PVC free
• Soft-bite valve with rigid cap ring for easy refill
• Freezer safe -- doubles as an ice pack on hot days
• Top-rack dishwasher safe
• Max temperature 122F
• Fits FITLY SUB45 front pockets and any FITLY pack flask holder
• Six colors: Blue, Black, Pink, Petrol Blue, Forest Green, Green
What's the capacity of the FITLY FLASK150?
The FLASK150 holds 5 oz (150 ml). Dimensions are 5.5 x 2.75 inches for Black/Blue and 6 x 2 inches for other colors -- compact enough to fit two in a SUB45 front pocket.
Will the FLASK150 fit my FITLY running pack?
Yes. The FLASK150 is specifically sized for FITLY SUB45 front pockets and works with every FITLY running pack and the FITLY Flask Holder.
Is the FLASK150 dishwasher safe?
Yes -- the FLASK150 is top-rack dishwasher safe. For stubborn residual flavors, let an orange peel or a tea bag sit in the flask for a couple of hours before washing.
Can I freeze the FLASK150?
Yes. The TPU construction is freezer safe, so you can freeze the flask ahead of hot runs to double as an ice pack. Max operating temperature is 122F.
How does the shrink-as-you-drink design work?
As you drink, the flexible TPU walls collapse onto themselves and push liquid out without needing air inside the flask. That eliminates sloshing, bouncing, and rattling during movement -- and lets you absorb almost 100 percent of the contents.
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DESCRIPTION
The FITLY FLASK150 is the most compact soft flask in the FITLY lineup -- a 5oz (150ml) collapsible flask built for runners who want quick-access hydration without bulk. Its shrink-as-you-drink design eliminates sloshing and bouncing as the flask compresses onto itself with each sip. Small enough to fit two in a SUB45 front pocket, and compatible with every FITLY running pack system.
Noteworthy FLASK150 features include:
• 5 oz (150 ml) capacity
• Two sizes: Black/Blue 5.5 x 2.75 in; other colors 6 x 2 in
• TPU construction, 100% BPA and PVC free
• Soft-bite valve with rigid cap ring for easy refill
• Freezer safe -- doubles as an ice pack on hot days
• Top-rack dishwasher safe
• Max temperature 122F
• Fits FITLY SUB45 front pockets and any FITLY pack flask holder
• Six colors: Blue, Black, Pink, Petrol Blue, Forest Green, Green
FAQ
What's the capacity of the FITLY FLASK150?
The FLASK150 holds 5 oz (150 ml). Dimensions are 5.5 x 2.75 inches for Black/Blue and 6 x 2 inches for other colors -- compact enough to fit two in a SUB45 front pocket.
Will the FLASK150 fit my FITLY running pack?
Yes. The FLASK150 is specifically sized for FITLY SUB45 front pockets and works with every FITLY running pack and the FITLY Flask Holder.
Is the FLASK150 dishwasher safe?
Yes -- the FLASK150 is top-rack dishwasher safe. For stubborn residual flavors, let an orange peel or a tea bag sit in the flask for a couple of hours before washing.
Can I freeze the FLASK150?
Yes. The TPU construction is freezer safe, so you can freeze the flask ahead of hot runs to double as an ice pack. Max operating temperature is 122F.
How does the shrink-as-you-drink design work?
As you drink, the flexible TPU walls collapse onto themselves and push liquid out without needing air inside the flask. That eliminates sloshing, bouncing, and rattling during movement -- and lets you absorb almost 100 percent of the contents.
No FAQs match your search.
EARN REWARDS
All purchases accumulate points which be can used to redeem for discounts on all items in our rewards collection. Enroll or view your current rewards balance here.
Earn 40 points for every $1 spent equaling 5% cash back
Recommended Thickness
6mm:
General-purpose for home fitness
8mm:
Home + light commercial use. Suitable for functional trainers, squat racks, treadmills
9mm:
Popular in commercial gyms, ideal for CrossFit & heavier dropsMost Popular
12mm:
Heavy-duty, great for Olympic lifting zones
18mm:
Industrial strength, used for powerlifting & stables
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