Size Guide
Aeroskyn™ is designed to stretch and form to your unique physiology. Reviews say the fit is True To Size. So we recommend using our size chart as a guide. Our most popular silhouette. Boxer Briefs feature a 3” inseam that sits comfortably mid-thigh. Boxer Briefs, as the representative of traditional undergarments, not only meet your daily wearing needs but also adapt to various sports occasions.

How to Measure Boxer Briefs

It is best practice to choose underwear size based on your waist size. We recommend sizing up for a more comfortable fit if you have a thicker lower half and your waist size falls between two adjacent sizes.
1. Waist: Measure around your waist, slightly below your natural waist.
2. Inseam: The inseam runs from the crotch apex of your underwear to the bottom of the opening. To measure, place a tape along the inside leg, from the crotch seam to the leg opening.
3. Outseam: The outseam runs form the very top of the waistband down to the bottom of the hem. To measure, place a tape along the outside leg, from the very top of the waistband to the leg opening.
Aeroskyn™ is designed to stretch and form to your unique physiology. Reviews say the fit is True To Size. So we recommend using our size chart as a guide.
Trunks are slightly shorter than our best-selling Boxer Briefs. Trunks are a versatile style of underwear suitable for low to moderate-intensity sports where breathability and freedom of movement are prioritized over maximum support or coverage. This includes activities like yoga, pilates, gym training, casual or light running, and beach volleyball.

How to Measure Trunks

It is best practice to choose underwear size based on your waist size. We recommend sizing up for a more comfortable fit if you have a thicker lower half and your waist size falls between two adjacent sizes.
1. Waist: Measure around your waist, slightly below your natural waist.
2. Inseam: The inseam runs from the crotch apex of your underwear to the bottom of the opening. To measure, place a tape along the inside leg, from the crotch seam to the leg opening.
3. Outseam: The outseam runs form the very top of the waistband down to the bottom of the hem. To measure, place a tape along the outside leg, from the very top of the waistband to the leg opening.
Aeroskyn™ is designed to stretch and form to your unique physiology. Reviews say the fit is True To Size. So we recommend using our size chart as a guide. Classic Briefs are designed for guys who prefer a full range of motion. A classic brief is a good option for sports that require a lot of agility and free range of motion, such as tennis, basketball, and football.

How to Measure Classic Briefs

It is best practice to choose underwear size based on your waist size. We recommend sizing up for a more comfortable fit if you have a thicker lower half and your waist size falls between two adjacent sizes.
1. Waist: Measure around your waist, slightly below your natural waist.
2. Outseam: The outseam runs form the very top of the waistband down to the bottom of the hem. To measure, place a tape along the outside leg, from the very top of the waistband to the leg opening.
Aeroskyn™ is designed to stretch and form to your unique physiology. Reviews say the fit is True To Size. So we recommend using our size chart as a guide. With a 7" inseam, Long Boxer Briefs are designed for those who are taller, have larger thighs, or prefer more coverage. Long boxer briefs are suitable for many active sports because the longer length prevents chafing, and the snug fit provides support and keeps everything in place during activities like running, hiking, cycling, weightlifting, and basketball.

How to Measure Long Boxer Briefs

It is best practice to choose underwear size based on your waist size. We recommend sizing up for a more comfortable fit if you have a thicker lower half and your waist size falls between two adjacent sizes.
1. Waist: Measure around your waist, slightly below your natural waist.
2. Inseam: The inseam runs from the crotch apex of your underwear to the bottom of the opening. To measure, place a tape along the inside leg, from the crotch seam to the leg opening.
3. Outseam: The outseam runs form the very top of the waistband down to the bottom of the hem. To measure, place a tape along the outside leg, from the very top of the waistband to the leg opening.
Aeroskyn™ is designed to stretch and form to your unique physiology. Reviews say the fit is True To Size. So we recommend using our size chart as a guide. For sports where form-fitting gear like leggings, tights, or yoga pants are worn, Zero Briefs eliminate visible panty lines (VPL) for a smooth, seamless look. This includes activities such as: yoga and pilates, ballet and other forms of dance, where specialized thong-like dance belts provide support and a clean line.

How to Measure Zero Briefs

It is best practice to choose underwear size based on your waist size. We recommend sizing up for a more comfortable fit if you have a thicker lower half and your waist size falls between two adjacent sizes.
1. Waist: Measure around your waist, slightly below your natural waist.
2. Outseam: The outseam runs form the very top of the waistband down to the bottom of the hem. To measure, place a tape along the outside leg, from the very top of the waistband to the leg opening.