KNucks Underwear
SIZE GUIDE
Boxer Briefs
Our most popular silhouette. Boxer Briefs feature a 5” inseam, with compression fabric that sits comfortably mid-thigh and offer the most breathability.
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Trunks
With a 3” inseam, Trunks are slightly shorter than our best-selling Boxer Briefs, and provide the most comfort.
Briefs
Our sexiest silhouette. Designed for guys who prefer a full range of motion
How to Measure
We suggest choosing underwear size based on your waist size. If you have a thicker bottom or prefer a looser fit we recommend going up one size for a more comfortable fit.
1. Waist: Measure around your waist, slightly below your natural waist.
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2. Inseam: The inseam runs from the crotch of your underwear to the bottom of the opening. To measure, place tape along the inside leg, from the crotch seam to the leg opening.