Free shipping

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

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. 

Warranty & Returns


60 days from the date of purchase for a full money-back refund + free return shipping. 

You can return your order for any reason.

Contact us at for more info.

Lifetime warranty

We offer a lifetime warranty on every pair sold. If it breaks, we'll replace it for free. 


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. 

Video install instructions can be found via the following link: Install Video Link

How to adjust sensitivity

We offer two versions of the PR1. The S1 version, designed for athletes under 100lbs, is more sensitive than the S2 version.

Please do not hesitate to reach out for additional assistance.