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Underwear packed with smart patent-pending technology

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Crossfly Men's Trunks - IKON 3" - NAVY

EVERYDAY SERIES

Money back guarantee
Love them, or get your money back

EVERYDAY SERIES

Crossfly Men's Trunks - IKON 3" - NAVY

Money back guarantee
Love them, or get your money back

Fit tips

We recommend you go down a size in this model if you want a more contoured supportive fit, as the modal fabric is very stretchy.

Size Guide
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

Size

XS

S

M

L

XL

XXL

Waist (Inch)

26-28

29-31

32-34

35-38

39-42

43-45

Waist (cm)

66-71

73-79

81-86

89-97

99-107

109-114

 

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
Size Guide
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

Size

XS

S

M

L

XL

XXL

Waist (Inch)

26-28

29-31

32-34

35-38

39-42

43-45

Waist (cm)

66-71

73-79

81-86

89-97

99-107

109-114

 

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
Size: S
Color: Navy
Charcoal
Black

Peter Cordwell - 07/02/22

Extremely comfortable, keeping everything in place. The material is superb. They are a joy to wear.

24H COMFORT & CLEVER ACCESS

Our game-changing 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.

  • 95% modal / 5% elastane
  • Super soft fabric for next-to-skin comfort that dries fast and remains breathable

Tony England - 21/03/22

The access vent is so perfect, no more fumbling and dribbles!

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.

  • COCCOON™

    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.

Nick Bayly - 24/03/22

After experiencing sizing issues with my first pair - they come up big - I went down a size and am delighted with my purchase.
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. 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.

AJ Harper - 28/02/22

These boxers are super comfortable for general day to day wear but also for high intensity training and spinning.
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 53 reviews
94%
(50)
2%
(1)
2%
(1)
2%
(1)
0%
(0)
P
PETER Smith
Great pants

One the best underwear I bought in a long time. Will buy more.

G
Gary in Harrogate
Great trunks

I ordered and really liked the socks so thought I’d try 1x pair of trunks as they are not cheap. Soon as I wore them I went and bought another 5 x pairs, the 20% discount didn’t work online so I emailed them and Val sent me out another pair straight away so all in all I am very happy with what is the comfiest trunks I have ever worn.

D
David Howlett
Great product and service, a must for all.

Product is really good and service faultless. What more could you want. Thanks.

M
Micheal Clarke
Top underwear

Been the best I’ve worn to date it’s all I wear now
Thanks Mr flash

S
Steven Jones
Comfort and Quality

Very comfortable, good looking and brilliant design.

B
B O’Connell
Works

Does what it claims

Customer Reviews

Based on 53 reviews
94%
(50)
2%
(1)
2%
(1)
2%
(1)
0%
(0)
P
PETER Smith
Great pants

One the best underwear I bought in a long time. Will buy more.

G
Gary in Harrogate
Great trunks

I ordered and really liked the socks so thought I’d try 1x pair of trunks as they are not cheap. Soon as I wore them I went and bought another 5 x pairs, the 20% discount didn’t work online so I emailed them and Val sent me out another pair straight away so all in all I am very happy with what is the comfiest trunks I have ever worn.

D
David Howlett
Great product and service, a must for all.

Product is really good and service faultless. What more could you want. Thanks.

M
Micheal Clarke
Top underwear

Been the best I’ve worn to date it’s all I wear now
Thanks Mr flash

S
Steven Jones
Comfort and Quality

Very comfortable, good looking and brilliant design.

B
B O’Connell
Works

Does what it claims

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.

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