Trunk Size Chart

Fit Profile: True to Size

Trunk Size Chart
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.

 

New

Flex Trunks

New

Flex Trunks

Our Flex Trunk Underwear style has been completely upgraded! Designed to be performance ready, the custom flex-knit fabric blend offers complete support, breathability and cool touch mesh for optimal temperature control. Learn More

Color
Black
Gunmetal / Camo
Maroon
Dark Olive
Color:
Size
Size Guide
Flex Trunk ">
Description
Details
Flex Trunk ">

Our Flex Trunk Underwear style has been completely upgraded! Designed to be performance ready, the custom flex-knit fabric blend offers complete support, breathability and cool touch mesh for optimal temperature control.

Now in all around enhanced fabric, experience improved support with improved breathability and ultimate flex-fit comfort. 

The Flex Trunk
Nylon 90% NYLON
Spandex 10% SPANDEX
Flex Trunk
Breathable BREATHABLE
Anti-Odor ANTI-ODOR
The BYLT Difference
Style, performance & comfort are our design principles that we use in creating our entire line.
Our Guarantee
It is critical to us that you are happy with your purchase and that you love the items you receive. We know things happen, if you are not 100% satisfied, we will try our hardest to make it right.
Experience Premium
We're here to upgrade your basics. Every BYLT product is rigorously tested before it's shown to the world to ensure it is nothing less than premium.
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Our Signature Fabrics

BYLT Blend™ Fabric

Premium signature blend of Cotton, Polyester, and Spandex. Perfect for your essential everyday shirt, leaving you with that flawless BYLT Fit.

LUX Blend™ Fabric

High-quality performance blend of Cotton, Polyester, and Spandex. Reactive fabric allows for slight reduction in length to provide the perfect structured fit.

Close
Trunk Size Chart

Fit Profile: True to Size

Trunk Size Chart
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.