The PR1 is the only training aid that helps you develop a midfoot strike. Using our patented Strike Detection Sensor, the PR1 creates a simple feedback loop for improved coordination and consistency.
Free shipping is standard on all orders. We ship USPS First Class with tracking.
Expedited delivery is available and is calculated at checkout based on final destination.
Do you ship Internationally?
Unfortunately, we only ship within the US. We are working towards expanding out shipping methods in the future! Drop us a line if you're outside the US and interested in buying a pair: [email protected]
How long does domestic shipping take?
We try to process your order within 1 business day.
Our free standard shipping is USPS First Class with tracking. This takes between 2-5 business days to get to your doorstep.
Returns & Warranty
How we handle returns
60 days from the date of purchase for a full money-back refund + free return shipping.
We offer a lifetime warranty on every pair sold. If it breaks, we'll replace it for free.
Installation
How to install
Use your shoe's stock insole as a template to trace onto the PR1.
Before tracing the outline, adjust the PR1 and stock insole so the edge of both heels are aligned.
Using scissors, cut along the outline. Do not cut the hard heel section of the PR1.
Position the PR1 so it lays flat with the logo facing up inside the shoe. The PR1 should be as far back towards the heel of your shoe as possible.
Rock back on heels to check spring activation. It sensitivity and position of activation should feel identical between feet. Adjust PR1s as necessary to get symmetry.
Full video install instructions can be found by clicking on the video icon below!
Can I adjust the sensitivity?
We offer two versions of the PR1. The S1 version, designed for athletes under 100lbs, is more sensitive than the S2 version.
The position of the heel assembly can affect the sensitivity of the spring. Every shoe and foot combo is different. The goal is to position the spring underneath the back edge of your heel.
You should be able to roll back on your heels and activate the spring.
A good starting position for the insole is flat across the midsole of the shoe and as far back towards the shoe's heel counter as possible.
Please do not hesitate to reach out for additional assistance via the contact box below or give us a call at 323.484.8946
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