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Flex Trunk

80
Size Guide
Flex Trunk Size Chart

Trunk

Fit Profile: True to Size
Size: S M L XL XXL
Waist: 28-30" 31-34" 35-39" 40-45" N/A
Leg: 6-7" 7-8" 7-8" 8-10" N/A

 

Your purchase includes our "Love Your Fit" guarantee

If you don't love the fit, send it back and we'll exchange the size so you're happy.

 

Color
Black
Gray
Green
Size

Performance Trunks

Signature 40° Side-Fly • Anti-Odor • Temperature Control • 84% Polyester  16% Spandex


“Lightweight, comfortable, and durable. I can wear the Flex Trunk anywhere with confidence that they will perform!" 




  • You deserve better boxers


      • Cool Where it Counts

    84% Polyester and 16% Spandex, our mesh zones are strategically placed to remove heat and keep you cool when and where it matters most.

      • Side Fly Innovation

    BYLT's signature 40º side-fly offers a more comfortable draw and easier access. It's time you see how we changed men's boxers for the better.

      • No Roll. No Marks.

    The Flex Trunk's no-roll waistband fits comfortably while leaving you mark free after a long day. Say goodbye to boxers that roll and ride up.




    Men's Temperature Control Flex Trunk Underwear Pack by BYLT Basics.



 

Customer Reviews

Based on 80 reviews
5 Star
78% 
62
4 Star
19% 
15
3 Star
3% 
2
2 Star
0% 
0
1 Star
0% 
1
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  • Reviews (80)
  • Questions (0)

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08/29/2018

Excellent design

Brian C.

Very comfortable and good design.

08/23/2018

Great material

Billy

Very stretchy and snug fit. Also very breathable in warm weather.

08/10/2018

Solid Boxer brief

Sam

I bought a bundle of the boxer briefs. I like them and have no complaints.

08/07/2018

great

Leo S.

best boxer ever!!!!!!!

06/15/2018

Good quality overall but the elastic band wears off after a few washes

Luis F.

I love the material and the overall quality but after a few washes (under 5 I believe), the elastic band junction on the back is starting to wear off...

Flex Trunk Size Chart

Trunk

Fit Profile: True to Size
Size: S M L XL XXL
Waist: 28-30" 31-34" 35-39" 40-45" N/A
Leg: 6-7" 7-8" 7-8" 8-10" N/A

 

Your purchase includes our "Love Your Fit" guarantee

If you don't love the fit, send it back and we'll exchange the size so you're happy.