In light of the current global situation, we have temporarily extended our returns policy to 60 days on all orders. 

Products must be returned in their original unworn condition with original labels attached. Unless the product is deemed faulty and a fault of the Gym King, the cost of postage will be deducted from any refund.



You will have 14 days from receiving your order to report any issues such as damage or defects to the outer packaging or missing or damaged items within your order. We will not be held responsible for any issues reported after this period. When reporting these to us please ensure you have photographed the issue as we will ask for this to conduct our investigation.

To report any issues with your order, please email customerservice@thegymking.com with photos of the issue for reference.



Unfortunately, once the order has been placed we can't change the order.

This includes the following:

  • Changing the item/ size
  • Delivery/ billing address
  • Adding other items to your order
  • Shipping address/ method

We're pretty quick at picking and packing your order, therefore we need to be quick to cancel your order once your purchase has been confirmed. If you contact customer service straight away we may be able to help. After it has been processed, cancellations will follow the usual returns procedure.




If you are not satisfied with your purchase, you have 30 days to return a product for exchange or refund.

If you request a refund of the original purchase price, this will be issued back to the original payment method (excluding the original postage that has been paid).

Refunds will be issued if items are returned in their original unworn condition with original labels attached. Returns that are damaged, soiled, scented, worn or altered will not be accepted and could be sent back to you. Unless the item is deemed faulty and a fault of The Gym King, the cost of postage will be deducted from any refund. 

Refunds will be processed within 10 days from the time of receiving your item(s).

Abuse of returns policy, such as repeat refunds with no valid reason, free wardrobing & chargeback fraud will not be accepted. Gym King reserves the right to make the final decision on refunds and returns. 


Don't worry, we've most likely got your parcel but is waiting in processing. Due to high volumes, we are unable to notify you we've received your returned parcel. Please keep hold of your proof of postage receipt. Once we've processed your return/ exchange, you will receive a email and SMS notification. Please allow us up to 10 days to process this.



How do I return an item purchased with Klarna?
Klarna returns will follow our usual standard returns process. Your total balance will be updated once the return has been processed and any remaining payments are automatically adjusted from the last instalment. Any payments already made will be refunded back to the original payment method. Do you have more questions about Klarna? Click here 





Please note that we can’t accept any form of returns or exchanges on GK Nano Face Masks due to hygiene and health & safety reasons. 

Faulty masks returns will not be acceptable if the packaging is opened /unsealed/ worn.



Please note that we can’t accept returns or exchanges on underwear or swimwear due to hygiene reasons.



Please ensure that the item(s) you return are unopened and in the original packaging. However, if the goods you receive are damaged or faulty, or not what you originally ordered we will be happy to exchange the items or offer you a refund.



For UK returns, please follow the link here which will take you to our online returns portal.

You will be required to login by entering your order number and email address. This will then take you to your recent orders where you can start your return process. Click on the item(s) you wish to return, choose the relevant issue and whether you would like a return or exchange. You will then be directed to a page that gives you your returns number and label. Please print this label off and enclose with your return. If you do not have a printer then please take note of the  return number and enclose it in with your items. Ensure that the return number is clearly visible on your paperwork.

(Please keep hold of your receipt as proof of return.)

Pack the item(s) you wish to return or exchange in their original condition, all original labels must be intact and, in a condition, to resell the product. 

We recommend returning your items back to us via Royal Mail Tracked service as we unfortunately can’t be held responsible for any items that do not reach us. Please return to: 

PO BOX 197
WF10 9DN

Please note that you will be responsible for paying postage costs associated with your return.

If you have any further enquiries about refunds or returns for UK orders, please contact customerservice@thegymking.com


Please note, due to busy periods, returns process may take up to 10 working days to process.

We will send you an email notifying you once your return have been processed.

If you do not receive an email after 10 working days, please contact our customer service with your proof of postage, parcel tracking number and order number.



You may return an international order within 30 days of receiving your order for an exchange or refund. To return an international order, please follow the steps below;

Go to the Global-e Returns Portal, enter the order ID and email address you used to place your order.

Select the item(s) you wish to return by adjusting the quantity and select the return reason. A copy of the return label will be emailed to you.

Pack the item(s) you wish to return in their original condition, with the original packaging. Seal the packaging, print the returns label, and affix it securely to the outside of the package. 

Returns can only be accepted via this process; this is to ensure that the appropriate customs clearance documentation is generated. Please note that the cost of return shipping will be deducted from the refund you are issued.

Once processed, the refund will take approximately 7-10 working days to be credited back to your original payment method.

For any further enquiries regarding international orders or returns, please use the Global-e help centre



Got the wrong size? Picked the wrong colour? Don’t worry, you can exchange for an alternative item by following the link here. This link will direct you to our online returns portal where you can select the item you would like to exchange.

When we receive your item, you will also receive a confirmation email from our Customer Service Team confirming receipt of your parcel.



In the unfortunate circumstance that you receive an incorrect item, or item you believe to be faulty, please contact our customer service team on customerservice@thegymking.com with the below info:

  • Your Order Number
  • Item Name and Size
  • Clear Photos with:

1) The close up of the fault

2) Full product length picture

3) The Gym King logo and tag attached to product 


Upon Gym King receiving your faulty/incorrect item, we will happily reimburse UK postage costs up to a value of £4.50 per parcel, dependent on size, weight and location.



If you return an item beyond the 30-day period or we deem the item in a non-sellable condition, we will hold the item(s) until you arrange a collection from our warehouse. Our Customer Service Team will be in touch to advise you of this.

For any further enquiries, please email our customer service team on customerservice@thegymking.com who will assist you further.