Diff Eyewear Coupon Codes
Our team reviews the coupons and deals listed on this page for accuracy and changes.
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40%
OFF
Verified Screenshot
40% Off Sitewide
2+
Shoppers revealed the code
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$30
OFF
Verified Screenshot
$30 Off Sitewide
1+
Shoppers revealed the code
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FREE
SHIPPING
Verified Screenshot
Free Shipping On All Orders with Email Sign Up
1+
Shoppers revealed the code
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UP TO
60%
OFF
Up To 60% Off Sale Items
1+
Interested users
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1
OFF
Buy 1 Get 1 Free
1+
Interested users
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FREE
SHIPPING
Free Shipping On Order Over $140
1+
Interested users
Diff Eyewear Coupons & Discount Codes
| Offers | Discount | Expiry |
| 40% Off Sitewide | 40% OFF | - |
| $30 Off Sitewide | $30 OFF | - |
| Free Shipping On All Orders with Email Sign Up | Free Shipping | - |
| Up To 60% Off Sale Items | 60% OFF | - |
Frequently Asked Questions
What is the return window?
Non-prescription items can be returned or exchanged within 30 days of purchase. Prescription items are exchange only, within 14 days of delivery.
What if I do not send my prescription?
Coupon site guides report that an order is canceled if prescription details are not provided within 30 days, with a $9.99 cancellation fee deducted from the refund.
What is the free shipping minimum?
Diff's site lists free shipping on US orders of $140. Smaller orders pay standard rates.
Are sale items returnable?
No. Items bought on the sale page or during a promotional sale event are final sale.
How do I pay with an FSA or HSA?
Choose FLEX as the payment method at checkout. If your card is declined, finish the order with a standard card and contact support for a custom invoice for reimbursement.