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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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 For too long, men have settled for outdated designs and average-quality underwear, while women’s underwear has evolved with innovation, support, and premium fabrics.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
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Reply from Crossfly
Wow ! Thank you for your comment, we appreciate it! We look forward to welcoming you back in store soon.
Reply from Crossfly
Wow ! Thank you for your comment, we appreciate it! We look forward to welcoming you back in store soon.
A fantastic product
A fantastic product, prompt delivery and well packaged. Will keep on ordering in the future.
2 September 2025
Reply from Crossfly
Wow ! Thank you for your comment, we appreciate it! We look forward to welcoming you back in store soon.
Good afternoon sales service
1 September 2025
Reply from Crossfly
Wow ! Thank you for your comment, we appreciate it! We look forward to welcoming you back in store soon.
Order arrived in a few days no problem…
Order arrived in a few days no problem delivery as asked and goods were great
10 September 2025
Reply from Crossfly
That's great to hear, thank you so much for taking the time to write a review!
Reply from Crossfly
Thank you for your feedback! We’re glad you’re happy with the quality. We understand they’re a bit of an investment, and we hope the comfort and durability make it worthwhile. 😊
Reply from Crossfly
Thanks for the excellent review! We look forward to seeing you in store again soon.
Reply from Crossfly
Thanks for the excellent review! We look forward to seeing you in store again soon.
At 78 a change of underwear.
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 support and neither stopped certain parts of my anatomy ending up in the leg section. Then I found CROSSFLY. what a difference, what a great experience with parts staying in place and supported. Very prompt delivery, nice feel to the material and they have washed well. The cross fly element proved to be very good. Extremely pleased thank you.
6 September 2025
Unprompted review
Reply from Crossfly
Thank you so much for sharing your experience! We’re delighted to hear that your first step into boxers with Crossfly has been such a positive one. Comfort and proper support are exactly what we designed them for, so it’s great to know they’re doing their job. We also really appreciate your kind words about the material, the wash, and of course the Crossfly design. Thanks again for your trust – we’re thrilled to have you as part of the Crossfly community!
Amazing under wear
19 August 2025
Reply from Crossfly
Thank you for your comment. Means so much to us 😊
Have sent email and I am waiting a…
Have sent email and I am waiting a reply, waistband has went on the product after one wear!
13 June 2025
Reply from Crossfly
Sorry to hear about your experience. That’s definitely not the experience we want for you and we certainly don't want to let you know. Please reach out to us at hello@crossfly.com with your order details and we’ll get this sorted for you right away with replacement pairs.
I didn't received my item
27 August 2025
Reply from Crossfly
Sorry to hear your order hasn’t arrived. That’s definitely not the experience we want for you. Please reach out to us at hello@crossfly.com with your order details and we’ll get this sorted for you right away.
very comfortable
very comfortable, soft on the skin and keeps the bits in place. They don't ride up and you hardly notice you're wearing underwear
27 August 2025
Reply from Crossfly
Thank you so much for your great feedback! 🙌 We’re delighted to hear that you find them so comfortable, supportive, and soft — just like they should be. It’s exactly the feeling we want our customers to experience. 💙
The most comfy underwear I've ever worn
Absolutely sublime comfort from these boxers, never experienced anything like it, I genuinely won't be able to wear anything else again.
26 August 2025
Reply from Crossfly
Wow, thank you for such amazing feedback! 🙌 We’re thrilled to hear our boxers gave you a whole new level of comfort. Knowing you don’t want to wear anything else is the best compliment we could hope for. 💙
Best boxers ever worn
I don't write many reviews but these deserve one - genuinely the best boxers I've ever owned. I didn't realise how uncomfortable my old ones were. These are not too tight and very soft. Cannot go back to wearing anything else.
26 August 2025
Reply from Crossfly
Thank you so much for taking the time to share this! 🙏 We’re honoured that our boxers have made such a difference for you. Knowing they’re the best you’ve ever owned — soft, comfortable, and impossible to go back from — is the ultimate compliment. 💙
The best pants ever
The best pants ever. I drive for a living and find other pants very uncomfortable crossfly are great 👍
26 August 2025
Reply from Crossfly
Thank you so much for taking the time to share this! 🙏 We’re honoured that our boxers have made such a difference for you. Knowing they’re the best you’ve ever owned — soft, comfortable, and impossible to go back from — is the ultimate compliment. 💙
Love the trunks!
Love the trunks. Perfect fit. Band stays - no rolling. Great fabric feel. Pouch is perfect. Keeps everything in place.
15 August 2025
Reply from Crossfly
Thank you for your fantastic feedback! 🙌 We’re thrilled the fit, fabric, and pouch support are hitting the mark. Knowing the waistband stays put and everything feels perfect means a lot to us. 💙
Best pants I have ever owned
14 August 2025
Reply from Crossfly
Thank you for your fantastic feedback! 🙌 We’re thrilled to hear that they're the best ones you've ever owned! It means a lot to us. 💙
Quick delivery of a great product
Quick delivery of a great product. Comfortable, supportive and long lasting.
23 August 2025
Reply from Crossfly
Thank you for your fantastic feedback! 🙌 We look forward to welcoming you back in store very soon💙
Excellent overall
Excellent overall, but pouch could be a bit more supportive by being a bit smaller but more "strechy"
22 August 2025
Reply from Crossfly
Thank you for your fantastic feedback! 🙌 We look forward to welcoming you back in store very soon💙
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