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Everyday Series

IKON Men's 6" Boxers - Navy

Fit tips

Can fit one size too big. If on a cusp of a size, please opt for a size down. Read more in the "How it fits section below

Size: S What's your size?
Size Guide

Men's Underwear

underwear size guide

The measurements on the size chart are body measurements. Find your correct size in the chart below.

Note that each style may fit differently due to the fabric used.

Size Chart








Waist (Inch)







Waist (cm)








Fit Tips

IKON & IKON X styles: (Choose one size smaller)

This style is made from Modal fabric which is quite stretchy. As such, we recommend that you order one size smaller than your usual size for a better fit.

PRO 7" style: (True to size)

Our customers find this style fits true to size.


How to measure

  • WAIST: Measure around the narrowest part (typically where your body bends side to side), keeping the tape horizontal.
  • INSEAM: Measure the from where your crotch meets the top of your inner leg.
Crossfly-how to measure
Color: Navy
  • First Pair Money Back Guarantee


Our game-changing Crossfly men's underwear Everyday Series is the ultimate premium underwear, combining two patent-pending technologies.The innovative X-Fly provides fast and easy access, and our Coccoon internal pocket support system minimizes chafing and provides optimal comfort and support. Teamed with our super-soft Modal fabric, we are confident Crossfly will soon become your everyday go-to favourites. 


• Fabric: 95% modal / 5% elastane

We have spent 3.5 years working on the best & most technical pair of underwear man has ever seen; and reviews show that it works. But, they’re not just technical, they are also the most comfortable pair you will ever wear.


    Eliminates skin on skin friction and chafing providing greater comfort and support.

  • X-FLY

    Easier, faster access when nature calls.

  • ZEROFOLD 360

    Stays in place however active you are. 4-way stretch construction works with your every movement.

  • DRI-PX2

    ‘No Show’ Dual layer protects against excess drips and moisture.

This boxer is made from Modal fabric which is naturally quite stretchy. As such, we recommend that you order one size smaller than your usual size for a better fit.

Fit one size too big.

Choose S if normally M (31,32")
Choose M if normally L (34, 35")
Choose L if normally XL (38, 39")

This 6-inch inseam style is a mid-rise which means they’ll sit on your hips nicely for a classic look. Not too high, not too low.

Model waist size is 32" and wears size Small
The guy who goes between the gym and the boardroom. This versatile pair is designed for a wide range of sports from running to hiking as well as more relaxed activities.

Customer Reviews

Based on 156 reviews
Chrisi Hall

As suggested always order one size smaller.i ordered large ,too large,I ordered small too small, I then ordered medium just right. My normal size with other brands is large. Pants fit well.

Spencer Lee

So good I bought some more

The best….

These boxers have to be the best I’ve ever worn!

David W Clark
Bought Lg and XL planning on returning the size least liked.

I originally bought this 3 piece bundle in XL. I was called about 2 hours later by CrossFly customer service asking me what size pants I wear. To which I said, 38. Then he suggested that I change my order from XL to LG, which I agreed to. Went I received my order it was the XL. I tried one pair and found them to be a little big. So I contacted customer service by e-mail about it and the fact that my account invoice showed and error. After contacting them, I was contacted back about already shipping the LG bundle out and cleaned up the account billing. I received the LG tried a pair of them and indeed they were a little tighter than the XL. However I struggle with which size to keep and contacted customer service about rebilling for both orders and just keeping them both.

I kept both sizes as I at times like a little looser fit and at times I like a little tighter fit. So these did the trick and being such soft and comfortable material, I did see where I could go wrong keeping both pairs. I have worn both sizes several times each and I am more and more please with my purchase of both sizes.

Thank You CrossFly for such nice men's underwear.

David W Clark

Jeffrey Newton

Extreme comfort

Very comfy

Another great purchase from Crossfly, very happy with their pants.

Money back guarantee

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

"Arrived on Saturday and I can honestly say that they are worth every penny"

- Vince Harris

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.