Free Shipping when you spend $50Shop
Sign up & save 10%Sign up

Our Technology

We have spent 3.5 years working on the best & most technical pair of underwear man has ever seen. Our material mix have been carefully designed to bring you comfort that lasts all day long whether you’re having an easy day or doing a hard workout.


Our patent-pending innovative internal pocket system provides greater comfort and support, eliminating skin on skin friction and chafing, keeping you cool when it matters.

Simply put, the Coccoon separates your private parts from your thighs.


Our ‘No Show’ Dual layer protects against excess drips and moisture. Its technical qualities and light breathable fabric ensure you’re comfortable all day long.

Extremely comfortable, keeping everything in place. The material is superb. They are a joy to wear.

Peter Cordwell, Feb 2022

X-FLY & Thumb Tab

Our patent pending technology enables easier, faster access through your trouser fly, removing the need to reach in and pull your waistband down or to undo your trousers.

The Thumb Tab central locating point enables you to find the Fly with ease.

So comfortable and perfect for any outdoor activity. The quick and easy access is ideal, especially when you’re supposed to be taking your next (golf) shot!

Lee, Feb 2022

Zerofold 360 & Stay Fresh

Zerofold 360
Using top quality fabric, our ZeroFold 360 Waistband is designed to stay in place however active you are.

Breathable & Stay Fresh

The naturally breathable qualities of the fabric we use in both our Everyday and Performance Series ensure that sweat is removed quickly so you can stay dry and fresh.

The Performance Boxer, the Pro 7", features strategically-positioned mesh panels to allow for more air flow. So Stay Fresh throughout your workout!

Just ran 61km ultra this weekend and never had to readjust or felt uncomfortable...

Dicky (from YouTube Review)

No more chafing

Eliminating skin on skin friction and chafing


Easier, faster access through your trouser fly


No Show’ Dual layer protects against excess drips and moisture

Stay Fresh

Our anti-microbial fabric is treated so that unwanted smells are eliminated.


Breathable mesh panels get rid of moisture and dries fast for maximum comfort.

Money Back Guarantee

Love them, or we'll refund or exchange your first order.

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.