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EcoSurplus - Trunk

Sale price US$18.00
Underwear Size Chart


SMALL 30" - 32" 75 - 80
MEDIUM 33" - 36" 81 - 90
LARGE 37" - 40" 91 - 100
XLARGE 41" - 44" 101 - 110
2XLARGE 45" - 48" 111 - 120
3XLARGE 49" - 52" 121 - 130


  • Waist: measure around your natural waistline where you underwear normally sits, keeping the tape flat on the skin but not tight.


In line with Obviously Apparel’s principle of eco-friendly sustainability, rather than throw out the extra material remaining at the end of each production run, we have created these limited-time products using this excess fabric from our PrimeMan Red/Navy/White garments and our PrimeMan Red waistbands. These are not factory seconds and match the quality of our regular garments.

When we designed the PrimeMan Trunk for men with average to smaller thighs, our goal was simple: support without restriction. And that went for every aspect of the underwear.

You should have seen our whiteboard, filled with equations and diagrams like we were trying to fool Will Hunting. The legs had to be short but long enough to prevent chafing, yet secure enough not to roll up. The Micro Modal/Lycra blend had to be ridiculously soft but moisture wicking and anti-bacterial to prevent sweat and odor. And by God, we pulled it off.

As for the anatomical pouch, it’s shaped to keep the penis and testicles nestled in place for unrivaled support – but somehow feels more freeing than going commando. We’d call it a miracle of science the likes of which have never been seen, but that’d be an understatement.

For active men, the PrimeMan Trunk is perfection down to the last thread. The math, science, unending testing, and glowing testimonials prove it.


SKU: A03-JD-4