









PEAK 500ml Soft Flask with Wrist Strap
HSA/FSA Eligible
Free Shipping
Built for the Miles That Test You
The PEAK 500ml Soft Flask is engineered for athletes who don't stop — runners, ruckers, and operators who need hydration that keeps up with the mission. Lightweight, collapsible, and built to move with your body, the PEAK Flask eliminates the bulk and bounce of rigid bottles so you can stay locked in on the trail, the road, or the field.
Carry It Like You Mean It
The integrated wrist strap system keeps the flask secured in your hand without a death grip — freeing up your focus for what's ahead. Whether you're deep in a ruck, grinding out a trail run, or pushing through a long-distance event, the PEAK Flask stays exactly where you put it.
Features
- 500ml capacity — the right volume for long efforts without the weight penalty
- Soft, collapsible design — compresses as you drink, eliminating slosh and reducing pack bulk
- Wrist strap carry system — hands-free security without a vest or pack required
- High-flow bite valve — drink on the move without breaking stride
- BPA-free TPU construction — durable, taste-neutral, and built to last
- Mountain topography graphics — Alpha Country aesthetic built for those who earn their miles
This Is More Than The Miles.
The coordinates on this flask — 41.2565° N, 95.9345° W — aren't random. They're a reminder that every mile you log is part of something bigger. The PEAK Flask carries that with you.
Test Details
Learn more about each test in this panel.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, typically within 24 hours on weekdays.
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Shipping
Shipping is always free. Kits are shipped via 2-day FedEx an a prepaid overnight return label is provided in every kit.
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Subscription
You can manage your subscription by clicking the link below. You can cancel or change your subscription at anytime.
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Contact Us
We make it easy for you to contact us! Reach out by phone or email.

How the device works
Our FDA-cleared device makes collection quick and virtually painless.
Stick it on your arm, press a button, and in about five minutes, you’re done. No needle. No fuss.

Accessing your results
Once your sample reaches our lab, you’ll get your results in 2–3 business days. We’ll email you when they’re ready, and you can view them through your secure online portal.
Your report is easy to read and ready to share with your healthcare provider.
How We Compare
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Find the right test
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Answer a few quick questions and we’ll match you with the PRYM test kit that best fits your goals, symptoms, and lifestyle.
Whether you’re checking in on your hormones, managing fatigue, or just want a clearer picture of your health, we’ve got you. No surprise bills. No hassle.



