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Tortoise - Runner's Athletics
Tortoise - Runner's Athletics



Unisex Polarized, Anti-Fog, Anti-Slip, Performance Sunglasses (54mm Frames)

Regular price $45.00
Sale price $45.00 Regular price $101.00
50% OFF Sold out

The Spartan is an iconic classic look and one of our best-selling styles designed for Runners giving the perfect balance of style and engineering. Built with our nylon polarized lenses which includes anti-fog, anti-scratch coating ensures clear vision and clarity possible. With spring flex hinges and a no-slip, no-bounce fit, these sunglasses stay securely in place during intense workouts. Embrace the perfect blend of coverage and style, and join the league of dedicated runners who choose Spartan Sunglasses.

Lifetime Warranty

Our sunglasses are built to last a lifetime. Whether you break them, scratch them or your dog chews them up, we have you covered! Just pay a small processing fee and we will send you a new pair!


Shipping and Returns


What if my items arrived damaged or I received the wrong item?

If your items arrived damaged or you received an incorrect item, please email with your name and order number. You do not need to initiate a return in the Returns Center for the damaged or incorrect items.


How do I return my items?

You may initiate a return via our Returns Portal or email us at with your order number and items you would like to return.


How soon will I get my refund?

Once we have received and inspected your items you will get your refund immediately. This will reflect back to the original mode of payment within 5-7 business days, depending on your financial institution. PayPal refunds will be visible in your PayPal balance immediately. We will send a confirmation email when the refund is complete. We will refund any unused portion of the store credit coupon code.


What items are returnable?

We accept returns of complete, undamaged and sellable items within 30 days of receipt. We have the right to refuse returned items that does not meet Runners Athletics return requirements.

Please note that shipping charges are non-refundable.


What are your shipping rates?

We offer FREE PRIORITY SHIPPING on orders over

$100 in the United States and FREE STANDARD SHIPPING on orders over $150 USD for other countries. US orders under $100, and International Shipping is calculated based on the location and weight. Once you reach the checkout page, you're able to enter the shipping destination and see additional shipping methods and their rates.


Fit Guide


For Frames That Fit Perfectly

1. Hold a ruler in line with your temple and stand in front of a mirror.

2. Measure the distance between your temples in inches.

3. Multiply your measured value by 25.4 to convert it from inches to millimeters.

Shipping and Returns


$9 USD or FREE if order is $75 or above.


$25 USD or FREE if order is $150 or above.


If something is not quite right you’ve got 30 days to send back your items for a for a full refund.


FIT Guide

Please use this chart as a general guide.


Ideal Face Shape: Oblong, Oval, Round

Head Size:

For any other questions regarding size or fit, please check out our FAQ page or contact our team through the Live Chat button.

Technology & FEATURES


Made for Athletes

Advantages image

Spring Flex Hinges

Advantages image

No Bounce Movement


Fog Resistant


Polarized UV400


Recycled Materials


Ultra Lightweight


No-Slip Fit


Customer Reviews

Based on 68 reviews
james vongbounemy
Love how these fit and feel

Love how these fit and feel. BRING BACK BLACKED OUT SPARTANS. Thank you

Megan C.

For these to replace my cheap every day sunglasses that were horribly scratched. Found this brand while searching for more ‘eco-friendly’ and affordable options and so far so good. Love the fit and the classic look, and the super affordable price.

Casey S.

I run the 3200m race and these are amazing, no bounce.

Michael E.


Stephen k.

Amazing quality for an amazing price!