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
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Review summary
Created with AI, based on recent reviews
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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
- #35 of 58 best companies in Underwear shop
- #312 of 627 best companies in Clothing Shop
- #144 of 241 best companies in Men's clothes shop
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 For too long, men have settled for outdated designs and average-quality underwear, while women’s underwear has evolved with innovation, support, and premium fabrics.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
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See how their reviews and ratings are sourced, scored, and moderated.
I really like your product as it fits…
I really like your product as it fits just perfect. Planning on buying more soon.
18 February 2026
Reply from Crossfly
That's great to hear, thank you so much!
Customer service for returning is non…
Customer service for returning is non existent! The window for returns is short, and it takes the department over 4-5 business days to get back to you.
12 February 2026
Reply from Crossfly
Hi Lori, we're sorry you have had a slow response from our team. This isn't what we'd like our customers to experience. We'll get in touch with you privately to ensure your case has been resolved. All the best, Crossfly.
Good quality
Suffering from an embarrassing hernia, ive searched many products before purchasing this underwear.
They arrived promptly, always received an update on progress.
They are very good quality & very comfortable. I would (at this stage) question the sizing / fit. I am a 36" waist so bought the 'large' size. They are, as previously stated, comfortable, but do not give the support I had hoped. I will, next month, order the same again, but in a 'medium' & no doubt will be asked to review my purchase. They are reasonably priced & the quality/feel makes it worth giving a second chance.
11 February 2026
Reply from Crossfly
Wish you a speedy recovery from the hernia. We're happy to hear that the Crossfly underwear have arrived speedily and we trust the mediums will offer you better support. Should you need any help with your next purchase, please do not hesitate to get in touch.
Reply from Crossfly
Thank you so much, we appreciate it!
Super soft and so much better than standard underwear
I was unsure about these but bought them to try. Well I’m so impressed I now have 4 pairs. The underwear is super soft and the cross fly design is so much more easy to use ( if you know what I mean)
16 February 2026
Reply from Crossfly
Amazing, you're a true Crossfly Convert!
Customer service excellent
Customer service excellent, product not so good, threads hanging from garment, pouch was irritating in all wrong places. Not for me unfortunately.
2 July 2025
Reply from Crossfly
Hi Matt, thanks for taking the time to write a review. We're sorry to hear your underwear's thread has gone loose. It's certainly not what we strive for, even after a year of wear. We'd like to remind you of the washing instructions to ensure longevity of the product and care for the fabric (low temp at 30C, dry naturally). We'll reach out to you to offer you a little comp to make things right! All the best, and hope to see you back in store soon.
Great product. Excellent service
I have purchased the items previously and have always been happy with both the product and the service. I had no hesitation in re ordering once again.
12 February 2026
Reply from Crossfly
Thank you for the excellent review, we appreciate it!
Fast delivery and product living up to…
Fast delivery and product living up to the the description of great comfort.
10 February 2026
Reply from Crossfly
Thank you for the excellent review.🙏
Product arrived exactly as described
Product arrived exactly as described. Unfortunately, I’ve shrunk but the product remain the same size so they’re a little big on me. Not the fault. Of Crossfly
13 October 2025
Reply from Crossfly
Thank you for the great review! We hope to see you back in store when you look for a smaller size :)
Top product
Top product, only ever buy my boxers from these guys. High quality, long lasting and really comfy.
29 December 2025
Reply from Crossfly
Top review, thank you!
Excellent service and product.
Excellent service and product.
The t shirts are excellent, well styled and excellent fit.
Look very smart and are very comfortable.
5 February 2026
Reply from Crossfly
Top review, thank you so much!
Superb Top Productquality product
Superb quality product. Perfect fit, and fast delivery. Never wear any other. Highly recommend
6 February 2026
Reply from Crossfly
Thank you for the top review, we appreciate it!
well packaged, quick access
I have underwear from four different manufacturers. Crossfly is the most comfortable for me in terms of cut, fabric, freedom of movement, and especially thanks to the X-FLY.
27 November 2025
Reply from Crossfly
We love hearing this! Thank you for the great review. 😊
Longer leg length so comfy mk
Delivered within 2 days. Quality superb - no annoying waistband twisting and very comfortable.
29 January 2026
The undies are very comfortable and the…
The undies are very comfortable and the fly design is actually usable, not that I normally would use the fly using the over the top technique. I found the pouch could have been a little more supportive. I like the brushed soft waistband. I really hope they stand up well to wear (sometimes modal blends are awesome at the beginning but a wash or two in become less soft
30 December 2025
Soft and Comfortable but disappointing
The underwear are soft and comfortable, and I love the horizontal fly. The main selling point for me was the pouch design, but that’s where these fell short for me. The pouch design doesn’t actually cradle or separate. It’s very similar to the design of the TommyJohn pouch, which is also disappointing.
20 January 2026
Well fitting, quality is first class, very, very comfortable and supportive.
Well fitting,
2 July 2025
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