Underwear packed with smart patent-pending technology

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Based on 187 reviews
Underpants that makes you feel smooth

The most comfortable underwear that I have ever been lucky enough to wear no matter what your age I would recommend you try a pair and will guarantee you will buy some more

Good investment

Used them for both runs and long walks with the pram. No chafing from these boxers compared to other ones in my drawer. Stretchy fabric so S suited me perfect, usually a M. Nice packaging was just a bonus 👍

Recent purchase

Excellent, great product, comfy, high quality and excellent service

Great for the Gym!

I find the Pro 7" gives the right amount of compression for a workout, with the added technical benefits of the Crossfly support and fast fly access. The material also seems to dry out quickly.

Mens boxers

My husband said they are the most comfortable he has ever had and would highly recommend them.

Great running socks

They're now my go to socks for running. Love them and will be buying more.


Good item thanks


Excellent value, great quality, lovely design.

Crossfly vent low cut sports socks

Perfect good quality

Best pants ever

Amazingly comfortable

PRO 7" Boxer
Richard Pridham
You can Finally forget about your bits!

I spend half my runs adjusting my junk. Not anymore. These are the best running underwear I’ve ever owned. I’ll be ordering more asap. Thanks guys!!!! 🤘

Yes I’ll add my Bee 🐝 Bit

Fantastic …. He thinks so as well


Very comfy, good quality socks with great design , and style

Max Comfort

Wore the IKON X 6" to hike up Snowdon and they felt comfortable from start to finish. They didn't rise up my legs either which was a bonus and the X-Fly opening really does work!

Great socks


Hubby’s birthday

My husband was very happy with them and said they are very comfortable


Excellent! Very comfortable, great style and easiest to use fly. I have no hesitation in recommending them and will certainly be ordering more.

Great Hiking Socks

Hiked up Snowdon in Tempo Crew Cut Socks. Loved them! They were comfortable and I had no blisters even after 7 hours on my feet.

Game changer

Incredibly light and comfortable. Great product.


sheer pleasure at the new experience

Top marks

Like many other reviews, Crossfly are by far the most comfortable, well fitting underwear I've ever worn. Even though they are a bit expensive I will be purchasing some more.

Thanks for the review Ian. It's always great to hear from happy customers!

For better deals, check out the bundles where you can get Crossfly underwear for as little as £15 per pair. :)


Most comfortable boxers to date.


These are well made, comfortable and don’t get you hot and bothered in the nethers!

Great comfy socks

Great design, and comfy.Even the guys at the gym have been asking me where I got them from.

Hi Keith, many thanks for your review and good to hear you're working out in them. We'll pop you an email with a cheeky discount code for your friends at the gym.

My New Favorites

I've studied many brands of underwear over the past few years and I must say that Crossfly are the best. The best fabric, no chafing and the fast access is so easy to use. Highly recommended.

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.