Fully Sized Up
People of all shapes and sizes can enjoy shopping at Fully Briefed. Sexy, comfy briefs, bikinis, trunks, low rise, boxers, jocks, thongs and enhancers aren’t just for those with swimsuit-model-perfect physiques! You'll find size options ranging from xx-small to x-large.
But each manufacturer's sizing can be slightly different, so our phunderwear engineers have tested and measured every pair of undies in our shop to create the most detailed and complete sizing information in the known universe - the Fully Briefed men's underwear sizing tables below.
Although you may know your pants size, it's worth taking a minute to measure your waist to get the perfect underwear fit. Wrap a flexible tape measure around your waist about where you'd normally wear the waistband of your pants. Then compare your inch or centimeter waist measurement to the charts below to know exactly which size to select. You'll also find these charts on every underwear detail page throughout the Fully Briefed men's underwear shop.
Shop with confidence, knowing it’s Fully Guaranteed to Fit.
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Made to have a snug fit. If your measurements fall between sizes we suggest going one size up.
Browse Baskit
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Runs true to measurements. You just can't go wrong with C-in2. All their sexy designer styles are sure to please.
Browse C-in2
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If your waist straddles two sizes, go smaller if you like a snug fit.
Browse Cocksox
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The measurements runs true and so do the sexy designs for the Pacific Northwest designer.
Browse Danial Webster
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DT has a contured fit, for a bit more room you might more up one size.
Browse DT
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Runs true to measurements. You always wanted to be one of the Elite here's your chance.
Browse Elite
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Fun Boxers sizes give you lots of room, if you like a tighter fit we suggest going down one size.
Browse Fun Boxers
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Sizes run a bit small, if you like a bit more room you might try a size larger.
Browse Gia
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Sizes run a bit small, if you like a bit more room you might try a size larger.
Browse Gigo
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Go Softwear has a European contoured fit, if you like a bit more room you might try a size larger.
Browse Go Softwear
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JM has a European contoured fit, if you like a bit more room you might try a size larger.
Browse JM
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Sizes run a bit snug, if you like a bit more room you might try a size larger.
Browse Joe Snyder
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Runs true to measurements. So choose a pair and be one of the boyz.
Browse Justus Boyz
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Made to have a snug fit. If your measurements fall between sizes we suggest going one size up.
Browse N2N
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"Y" fronts are considered to run large and it is important to note that they are not preshrunk. Disco sex are true to normal sizing.
Browse Otter
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Runs true to measurements. If you feel like you want to cowboy up slip on a pair of these sexy designer underwear and hit the back forty.
Browse Rufskin
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Runs true to measurements. Besides giving you a lift, they will fit you inner Wildman to a "T".
Browse WildmanT
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