I've needed some new underwear and purchased a myriad of single pairs from different companies. The crossfly won hands down for support and comfort. Grabbed 1 pair of short running socks to see how... See more
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
I like the product and my experience of customer service has always been good. The “uplift” that these pants provide is great and better than others I have tried. My only criticism is that the produ... See more
This was my third purchase. Having tried various makes of underwear, Crossfly are the most comfortable I've worn, and the the way the fly is designed, no more fumbling around. Slowly, because they... See more
Company replied
At 78 and having always worn briefs type underpants I decided that perhaps I would try boxers. I tried pairs from a well know High St store and also from a well know brand of boxers. Neither provided... See more
Company replied
Company details
About Crossfly
Written by the company
Crossfly was created to redefine everyday comfort for men. For too long, men have settled for outdated designs and average-quality underwear, while women’s underwear has evolved with innovation, support, and premium fabrics. We’re here to level the playing field — with performance-driven, intelligently designed products that put comfort first.
Born from a small team of UK and US sportswear professionals with decades of experience in product innovation and marketing, Crossfly was created with a simple mission: to elevate men’s everyday comfort through intelligent design, premium quality, and sustainable thinking.
We’ve poured our expertise into creating a lifestyle brand that puts performance, durability, and comfort first. Our underwear and socks aren’t just everyday essentials — they’re your go-to, must-have gear that supports you through work, sport, travel, and everything in between. With every Crossfly product, you’ll feel the difference from the moment you put it on.
What Sets Crossfly Apart?
Unmatched Comfort: Our Cocoon internal pocket system offers all-day support, eliminates friction, and keeps you cool — so you can focus on life, not discomfort.
Innovative Design: The X-Fly reimagines the traditional Y-front with a faster, smarter, one-handed access system that just makes sense.
Premium Fit: Our ZeroFold360™ Waistband moves with your body and stays smooth — no rolling, no digging, just pure comfort.
Feel-Good Products in Every Way We don’t launch anything unless it improves on what came before. That means using superior materials that feel better and last longer than the competition. And where possible, we choose sustainable options, from responsibly sourced fabrics to 100% recyclable packaging. Because looking after the planet is part of feeling good, too.
Our Vision: Take Comfort to the Extreme Whether you're pushing limits or just getting through a long day, Crossfly is designed to move with you, support you, and make you feel great doing it. Once you’ve worn Crossfly, you won’t want to go back.
Discover the Crossfly difference at crossfly.com
Born from a small team of UK and US sportswear professionals with decades of experience in product innovation and marketing, Crossfly was created with a simple mission: to elevate men’s everyday comfort through intelligent design, premium quality, and sustainable thinking.
We’ve poured our expertise into creating a lifestyle brand that puts performance, durability, and comfort first. Our underwear and socks aren’t just everyday essentials — they’re your go-to, must-have gear that supports you through work, sport, travel, and everything in between. With every Crossfly product, you’ll feel the difference from the moment you put it on.
What Sets Crossfly Apart?
Unmatched Comfort: Our Cocoon internal pocket system offers all-day support, eliminates friction, and keeps you cool — so you can focus on life, not discomfort.
Innovative Design: The X-Fly reimagines the traditional Y-front with a faster, smarter, one-handed access system that just makes sense.
Premium Fit: Our ZeroFold360™ Waistband moves with your body and stays smooth — no rolling, no digging, just pure comfort.
Feel-Good Products in Every Way We don’t launch anything unless it improves on what came before. That means using superior materials that feel better and last longer than the competition. And where possible, we choose sustainable options, from responsibly sourced fabrics to 100% recyclable packaging. Because looking after the planet is part of feeling good, too.
Our Vision: Take Comfort to the Extreme Whether you're pushing limits or just getting through a long day, Crossfly is designed to move with you, support you, and make you feel great doing it. Once you’ve worn Crossfly, you won’t want to go back.
Discover the Crossfly difference at crossfly.com
Free Shipping
Written by the company
- With any purchase above $60/£50
- Shipping costs sucks. We know it. We try to be as fair as we can and absorb the cost so you don't have to. We have a low threshold for this reason so you can enjoy free shipping (most of the time).
Crossfly Promise
Money Back Guarantee on your First Pair
Get your money back if you're not 100% happy.
Contact info
United Kingdom
- hello@crossfly.com
- crossfly.com
Bestselling styles
4.5
Excellent
441 reviews
Replied to 100% of negative reviews
Typically replies within 1 week
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Perfect Trunks
Extremely comfortable and like the internal pocket for separation. Also like the horizontal X-fly for quick and easy access.
May 6, 2026
Prompt delivery
Prompt delivery, and excellent product. Second time I have made a purchase and will do so again when I need to.
May 6, 2026
Worst pair of boxer shorts I’ve ever…
Worst pair of boxer shorts I’ve ever brought pouche dose not support you at all
May 5, 2026
Reply from Crossfly
We're sorry to hear this. We would love to have the opportunity to make things right and hear more about your experience. We will be in touch with you directly.
Great products great post just great
May 1, 2026
Reply from Crossfly
Thank you so much for your excellent review for Crossfly. We appreciate it!
Reply from Crossfly
Hi Daniel, thank you for taking the time to write a review. This is exactly what we want our customers to feel – the difference in our premium modal fabric vs standard ones. Many thanks and see you again in store soon!
Very comfortable and well made
April 29, 2026
Reply from Crossfly
thank you for your 5 star review! We appreciate your support
The kit is well made but..
The kit is well made. Unfortunately I didn't get the email about the advisability of ordering a size smaller until after my order arrived. Consequently, I've found them only moderately/slightly helpful. Maybe if I'd had the smaller size it would have been 5 stars?
April 27, 2026
First time buy
First time buy, fit very good & material good & washed good no problem with delivery will certainly buy again thank you
April 27, 2026
Reply from Crossfly
Thanks so much and we count on seeing you again soon. 😊
Great product
Ordered the starter pack, tried both and prefer the 6 inch, well made extremely comfortable and the best underwear yet. Not cheap but you get what you pay for. Quick delivery, have ordered another 6 pairs.
April 22, 2026
Reply from Crossfly
We hope you found the Starter Pack useful to try the different lengths and what you prefer. Thanks for the follow up order of 6 pairs. We appreciate the loyalty. 🙏
I’ve already come back to buy more
I’ve already come back to buy more, which says everything. It’s rare to find a brand that lives up to expectations like this, but Crossfly definitely does. Highly recommended — I’ll be a repeat customer for the foreseeable future.
April 24, 2026
Anticipation of product use
April 21, 2026
Great product swiftly delivered.
April 18, 2026
My husband said these have changed his…
My husband said these have changed his life and keeps going on about them. He even sleeps in them because it is comfortable. Try one pair like he did, then ordered another 6. BRILLIANT.
April 1, 2026
Unprompted review
Quick and efficient delivery
Quick and efficient delivery. Packaging was perfect, goods were excellent
April 17, 2026
QUALITY
QUALITY, comfort, and support...what more could you ask for? ...and the socks are pretty fab, too. They actually stay up for the whole day and they are so comfortable.
April 20, 2026
Unprompted review
My favorite underwear
My favorite underwear. I think about a few of the my first purchase, while I loved them, Crossfly sent me an email with a not that the 3 pair I purchased were not up to their standards and offered a replacement big discount. What a great company, I took them up on the offer and have purchased every different design offered including workouts, everyday wear to lounging.
April 22, 2026
Unprompted review
Worth a try
Easy to order and shipping was timely. The softness stands out as well. The fit is, as stated, a bit on the large size. I may opt to size down on another pair as there is a bit of extra room in the “large” size for me, though I usually wear a large with a size 36” pants. My biggest negative is the “cocoon” part of the pouch is more of a marketing ploy than an actual functional component to the underwear. It sits too low in the structure to actually separate and contain for more than a brief amount of time. Lie down or sit in a chair and everything just
Moves as normal. And if it were any higher up it would be an uncomfortable
Obstruction always rubbing against you so zero benefit in my opinion!! That said I may try a different size to compare the fit.
April 21, 2026
Unprompted review
Quality product
A very good product this is the second order I've had prompt delivery
April 17, 2026
My husband is delighted with his…
My husband is delighted with his underpants very comfy and supportive
April 17, 2026
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.