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ALPHX | ATHLETIC FIT UNDERWEAR

Experience a more personal fit in our Athletic Fit engineered for guys with large or muscular thighs: This style offers the same sleek, modern look as our regular cut but with an additional 1.6 inches of legroom per waist size than our Modern Fit.

Find Your Size
Boxer ALPHX Athletic Fit Comfort Class Noir Minuit
Boxer ALPHX Athletic Fit Comfort Class Noir Minuit
Boxer ALPHX Athletic Fit Comfort Class Noir Minuit $36.00
ALPHX Boxer de classe confort coupe athlétique vert mousse
ALPHX Boxer de classe confort coupe athlétique vert mousse
ALPHX Boxer de classe confort coupe athlétique vert mousse $36.00
Boxer ALPHX Athletic Fit Comfort Class Marine Marine
Boxer ALPHX Athletic Fit Comfort Class Marine Marine
Boxer ALPHX Athletic Fit Comfort Class Marine Marine $36.00
Rating: 5.0 out of 5
ALPHX Short de classe confort coupe athlétique noir minuit
ALPHX Short de classe confort coupe athlétique noir minuit
ALPHX Short de classe confort coupe athlétique noir minuit $34.00
ALPHX Boxer de classe confort coupe athlétique blanc givré
ALPHX Boxer de classe confort coupe athlétique blanc givré
ALPHX Boxer de classe confort coupe athlétique blanc givré $36.00
ALPHX Boxer de classe confort coupe athlétique vert mousse
ALPHX Boxer de classe confort coupe athlétique vert mousse
ALPHX Boxer de classe confort coupe athlétique vert mousse $34.00
ALPHX Short de classe confort coupe athlétique, marine maritime
ALPHX Short de classe confort coupe athlétique, marine maritime
ALPHX Short de classe confort coupe athlétique, marine maritime $34.00
Rating: 5.0 out of 5
Pantalon Union ALPHX Athletic Fit pour homme vert mousse
Pantalon Union ALPHX Athletic Fit pour homme vert mousse
Pantalon Union ALPHX Athletic Fit pour homme vert mousse $60.00
Boxer ALPHX Athletic Fit Comfort Class Bleu Glacier
Boxer ALPHX Athletic Fit Comfort Class Bleu Glacier
Boxer ALPHX Athletic Fit Comfort Class Bleu Glacier $36.00
Pantalon Union ALPHX Athletic Fit pour homme noir minuit
Pantalon Union ALPHX Athletic Fit pour homme noir minuit
Pantalon Union ALPHX Athletic Fit pour homme noir minuit $60.00
ALPHX Athletic Fit Comfort Class Trunk Blanc givré
ALPHX Athletic Fit Comfort Class Trunk Blanc givré
ALPHX Athletic Fit Comfort Class Trunk Blanc givré $34.00
ALPHX Short de sport coupe athlétique classe confort bleu glacier
ALPHX Short de sport coupe athlétique classe confort bleu glacier
ALPHX Short de sport coupe athlétique classe confort bleu glacier $34.00
Rating: 5.0 out of 5

One Style Plus Two Leg Cuts Equals Better Fitting Underwear.

ALPHX is the first brand to offer a MDRN (Modern) Fit and an ATHLTC (Athletic) Fit in its trunks and boxer briefs. Our Modern Fit is great for men with slim to average thighs. Need more leg room? Our ATHLTC Fit gives you one additional inch of legroom in sizes S-XL. So now guys with thick or muscular thighs don't have to size up to fit their legs.