Does the waterproof feature wear off?

It’s not a treatment—it’s built that way. Each pair of Rens contains a breathable, waterproof nano-layer driven by our AquaScreen Tech™. This keeps your feet stay dry for your sneaker’s entire lifecycle.

Are Rens really 100% vegan?

Yes, all materials, dyes, and adhesives are 100% vegan! No animals were harmed in the making of these awesome sneakers.

Why use Coffee to make sneakers?

Food waste is a leading driver of greenhouse gas emissions. Did you know that the world consumes nearly 2.5 billion cups of coffee every day?

We can’t solve the problem of coffee waste alone, but we can show the world how this material can be used to make awesome products.

Do you offer wide sizes?

Rens come with standard, medium-size width however the 4-way stretch material may be flexible enough to comfortably accommodate a slightly wider fit.

How should I clean my Rens?

We recommend using a small amount of any standard, non-solvent based detergent, and a clean cloth to wipe away any grime that won’t come off with a quick rinse.

Order Shipping, Tracking & Delivery

What type of shipping method/courier do you use?

We use USPS - Priority Mail as our primary method of shipping.

I just made an order, when will it be shipped?

Your order will be dispatched within 1–3 business days upon the purchase of the order.

How do I track an order?

When you order is dispatched, you will receive an email containing the tracking information. Please make sure to check your email inbox (please also check your spam folder).

Returns, Exchanges & Refunds

What’s your return policy?

We offer 30-day free returns on all USA orders, upon receipt of the product. The product can be returned either for a refund or an exchange. Please note we ONLY ACCEPT the return of unworn shoes, with the tag still attached and the “Welcome” note in the original shoebox.

How do I return my order?

To return your order, please contact our support team at with your order number and we will provide you with a return label.

How can I get a refund?

We process refunds upon receipt of your returned item. Please contact our support team at

Where is my refund? My refund was approved, but it’s been more than 7 days?

Approved refunds can take up to 7 business days to appear in your account. If your refund hasn’t been received after 7 days, please contact your bank directly and inquire about pending refunds on your account.