Students, office workers and gamers. Basically people who sit in front of a computer all day, who have trouble sleeping, or who suffer from eye strain or eye irritation from looking at a computer or mobile screen for too long.

All of our lenses are CR-39 blue light blocking lenses. This material is composed of plastic polymer commonly used in the manufacture of eyeglass lenses today. The big advantages of CR39 lenses over previous glass lenses are lightweight, and better shatter resistance.

Kooper +Blue Light® technology block around 40% of blue light, providing clearer vision and comfort for your eyes. Blue light lenses are slighted tinted, could be yellowish, blue or green depending on the factory.

When you go to any of our product pages, you can find the size under the tab "General Information." When you click on the numbers, you can see an example to get a better understanding of these measurements. These numbers correspond to: Lens Width (mm) - Bridge Size (mm) - Temple Size (mm). 

We don't offer prescription lenses at the moment, but this is something we are planning to incorporate in the future.

We manufacture our products in China, however our products are designed in New York, NY, USA. Our warehouses are located in the USA and China, so they will be shipped from any of these two locations, depending on the availability.

We offer free shipping to Australia, Austria, Belgium, Brazil, Canada, Denmark, Estonia, Finland, France, Germany, Greece, Hong Kong, Hungary, Ireland, Indonesia, Israel, Italy, Japan, Kazakhstan, Korea, Latvia, Lithuania, Luxembourg, Malaysia, Malta, Mexico, Netherlands, New Zealand, Norway, Poland, Portugal, Russia, Saudi Arabia, Singapore, Spain, Sweden, Switzerland, Thailand, Turkey, Ukraine, United Kingdom, United States and Vietnam.

All orders are sent to our factory for dispatch within 24 hours after the order is placed. Our factory will process the orders, which takes an additional 1 - 3 business days. After processing and leaving the warehouse, it can take up to 2 - 4 weeks to ship your order, depending on the destination. We average 2 - 2.5, weeks but please allow extra time due to high demand. For more information about our shipping policy, click here.

After you place an order, we’ll send you a confirmation email with your order details. Once your order has been processed and sent, you’ll also receive the tracking information by email. You can always track your order here.

Tracking information should be updated 3-7 days after its shipping label has been created. Please rest assured that a delayed update on the tracking of your order does not usually affect its delivery.

Below are some steps and suggestions on how you can solve this:

• Check if the shipping address of your order is correct.
• Ask your neighbors, relatives or friends if they have received the parcel on your behalf.

All orders reported as “delivered” by shipping companies are considered delivered. Kooper cannot be made liable of non-delivery in this case.

Orders shipped with standard free shipping method, when not delivered door-to-door, might be delivered directly to your local post office. We will inform you once it has arrived. Please use your identity document and the tracking number to collect your parcel. If you are not at home for its delivery or the package is too big for your mailbox, your parcel may return to your local post office. A notice will usually be left on your door or in your mailbox.

Below are some suggestions:

• Check the status of your order;
• If it can be tracked, calculate the number of business days between its shipment date and the current day. Business days refer to the period of time between Monday and Friday and do not include national holidays or weekends;
• Contact us at orders@koopereyewear.com to verify the estimated delivery time of the shipping method you selected;
• If its estimated delivery time has not passed yet, please wait for some other days.

If you have not received your parcel during this period of time, you can confirm that the shipping address is correct; If there are no problems with your address, the delivery of your order may have been delayed by slow customs.

Our policy lasts 30 days. If 30 days has passed since your purchase, we can’t offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. To return your product, you should mail it to our office in New York.

Once your return is received and inspected, we will send you an email to notify you that we have received your item. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your card or original method of payment. Learn more here.