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IKON 3" Trunk

Fit tips

We recommend you go down a size in this style if you sit in-between sizes to get a more contoured fit as the modal fabric is very stretchy. (Ie: if normally a S/M, please opt for S)

Size: XS 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

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
Color: Hemp/Blue
Hemp/Blue
Hemp/Grey
Hemp/Red
Green/Marle
Black
Charcoal
  • First Pair Money Back Guarantee

24H COMFORT & CLEVER ACCESS

The IKON 3" trunk is the ultimate premium men's underwear, combining two patent-pending technologies. The X-Fly provides fast and easy access and our Coccoon internal pocket support system minimises chafing and provides optimal comfort & support. Teamed with our super-soft Modal fabric, these will become your go-to favourites.

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

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.

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 3-inch inseam style is a low-rise which means they’ll sit lower on your hips for a trendy look.
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 140 reviews
84%
(118)
3%
(4)
8%
(11)
4%
(5)
1%
(2)
P
Pierre T.
A little luxury

I tried on a pair and ended up buying the Ambassador Pack. Great value for the luxury you get. I’ve been recommending Crossfly to all my friends!

R
Roy Fox
Super comfortable niknaks.

Have to say, I didn’t believe the hype but the reviews are right, these pants offer an all day, super comfy feel and support. Definitely a game changer for me. Will be buying more.

V
Veselin Ivanov

Crossfly Men's Trunks - IKON 3" - CHARCOAL

D
David Jones
The best yet!

I've tried all of the other brands and these are the best. Luxury material, great fit, great quality and the fast fly idea is epic.

S
Subbo
Very comfortable

My husband loves these, was experiencing discomfort and said these feel amazing on! Silly me thought there was 3 pairs in the packet but there’s only 1!

P
Pierre T.
Best fitting underwear

The fit and fabric are superior to any other brand I have worn previously. I wear the IKON trunks on the commute as well as the gym.

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.

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