Sale

Flex Trunk Custom 3 Pack

125
Sale

Flex Trunk Custom 3 Pack

125

Designed with increased compression, breathability, and support for your more intense days.

Step 1: Pick your size

Size
Size Guide

Step 2: Select 3 Colors

Color # 1
Maroon Red
Black
Gray
Green
Color:
Color # 2
Maroon Red
Black
Gray
Green
Color:
Color # 3
Maroon Red
Black
Gray
Green
Color:

Customer Reviews

4.8 Based on 125 reviews
5 Star
82% 
102
4 Star
16% 
20
3 Star
2% 
2
2 Star
0% 
0
1 Star
0% 
1
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06/29/2019

Flex Boxer Brief

Joseph A.

Very comfortable throughout the day. Worth the price and will definitely buy more boxers.

06/26/2019

Great product good customer service

Erich H.

Good fitting great looking underwear.

06/25/2019

Amazing Undies

Joseph F.

Great for the gym and the streets, and they look super cool, too!

06/25/2019

Great pair of underwear

Vince T.

Great for working out.

06/21/2019

Tried these briefs and...

Russ W.

I LOVED THEM! I wore them at the gym and in the ocean under swim shorts. Loved them!

Trunk Size Chart

Fit Profile: True to Size

Size: S M L XL XXL
Waist: 28-30" 31-34" 35-39" 40-43" 43-46"
Outseam: 6-7" 7-8" 8-10" 10-11" 11.5"

  *Standard Trunk Size Guide Measurements:

Waist: Circumference measurement of waist. Trunks are designed to fit above the hips.

OutseamMeasure the length from the intersection of the waistband & hip to the bottom hem, follow the outer seam.

*Product measurements can vary by 1/2" 

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.