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Underwear is one of the most washed items in our lives. We’ve designed our product to be thrown in a wash with setting from cold wash to 40 degree Celsius and then tossed in the dryer at low heat - it’s that simple. We recommend washing your Crossfly products with similar fabrics and avoiding abrasive materials such as towels. 

We currently offer products for sizes 29inch -45inch (XS-XXL). We want all body types and heights to feel confident in Crossfly. If you’d like to see an additional size added to our range or have any feedback, please do not hesitate to get in touch via

Of course we do! You can find it here


We’re sorry to hear that you’re still waiting for your order to arrive. No one likes waiting longer than they have to for new gear. Please get in touch with our Customer Service team via and they’ll investigate the details of your order's whereabouts.

Upon submitting your order, you will receive a confirmation message on the screen. In addition, you should receive a confirmation email to the address provided, stating your order number. If you have any problems, please contact our team via

As we aim to ship your order as quickly as possible, we regret that it is usually not possible for us to handle change or cancel requests once an order has been submitted. Please ensure that you have verified your order details prior to submission, especially the billing and shipping address. Crossfly can be contacted during business hours but if we are unable to facilitate an order change or cancellation request, you may process a return under our returns policy.

Please email as soon as possible. If we are unable to facilitate an order change request, you may process a return under our returns policy.

Visa, Visa Debit, Mastercard, American Express, PayPal, Google Pay, and Apple Pay.

Discounted prices are as marked on eligible items. Quantities are limited; discounted price is available only until the end of the sale period. Offer cannot be applied to previous purchases.

No, coupon codes are not valid for use during a sale.


DPD24 - £5.95 with tracking and 'signed-for' service included. 

RM48 - £3.95 with tracking service. 


Please note - Free Shipping for all UK orders over £45, and EU orders over €100.

UK orders will be shipped via a DPD24 or RM48 service, depending on the customer's preference. Please allow 1-2 days for orders shipped using DPD24 and 2-3 days for orders sent via RM48. 

EU orders will be sent via DHL, on a 3-5 day service. 

You'll receive a tracking link in the Shipping Confirmation email you receive when your package ships from our warehouse. Orders placed during weekends will be shipped out the next business day.

Of course. If you wish to return items from your order, we'll refund the full purchase price. Products just need to be in original condition and packaging, including socks (must have original packaging intact).

Refunds are processed shortly after we receive the goods back at our warehouse. Please allow 3-5 business days for the credit to appear on your statement.


You can rest assured that we will treat any data you provide us with strict confidentiality. In no circumstance will data be passed on to any third party. You can find full details of our privacy policy here.

Crossfly has been a vision of a small team of sporting product professionals from the UK and America. Together, we have acquired decades of experience working in the Sports industry for global brands within Marketing and Product Innovation. After a few false starts, some legal issues, a eureka moment, and a global Pandemic Crossfly was finally ready to get going.

WE'VE RAISED THE BAR and deliver the most comfortable underwear and socks you will ever wear; packed with patent pending technologies and features that offer ultimate comfort whatever you're doing. GAME. CHANGED.