Gray Boxer Briefs 6 Inch – 1st Gen Athletic Underwear For Men

Availability: Out of stock

1st Generation Grey 6 inch inseam Sport Boxer Brief Men's Underwear with Patent Pending Drawstring Support System.

Material: 90% Polyester / 10% Spandex

*** Important***

Select Size based on your normal pants waist size.
If on the border go up to the next size.

Click here for version chart comparison

Gray 32-34,36-38 & 40-42 is no longer offered in UFM 1.0 but it is available in UFM 2.0
Click here for Gray 32-34, 36-38 & 40-42 UFM 2.0

For Sport Big and Tall Sizes (44-58)-Click Here

Grey Boxer Brief Close Front View
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UFM Underwear is premium men’s underwear that has an adjustable pouch that isolates and supports your manhood. The pouch adjusts with a drawstring that lifts your manhood, keeping it away from your thighs and out from under you keister. The soft, breathable fabrics help keep you cool and comfortable so you can focus on your game.

Men’s Underwear Technology Explained – Inside the Adjustable Pouch

The 1st Generation boxer briefs have a drawstring that ties on the inside, making it perfect for MMA and kickboxing, as well as many other sports.


  • Grey



Available 1st Generation UFM Sport Boxer Brief Sizes:


28-30” (71-76 cm)


32-34” (81-86 cm)


36-38” (91-97 cm)


40-42” (102-107 cm)


If you need Big and Tall Underwear size, check out UFM 3rd Generation

Underwear For Men is sized to fit your waist.

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