Trying trunks instead of boxer shorts for the first time
Short answer: Trunks are shorter and closer fitting than loose boxer shorts, giving more support and lying smoothly under trousers. The first time is about choosing the right size and getting used to the closer fit.
The difference between trunks and boxer shorts
Loose boxer shorts are sewn like short shorts in a woven fabric with plenty of room. Trunks are made from stretchy knit, sit close to the body and have short legs that end at the top of the thigh. Between the two are boxer briefs with slightly longer legs. Trunks give more support and do not bunch up under trousers. Many are made from bamboo viscose with elastane, which is soft and smooth.
Why many people switch
The most common reason for switching is that loose boxer shorts gather in the crotch and around the thighs under slim trousers. Trunks lie flat and stay in place all day, including when you cycle or sit for a long time. They are also practical for exercise because they support without restricting. Browse the bamboo underpants for men to see trunks and other styles side by side.
Finding the right size
Because trunks fit closely, size matters more than with loose boxer shorts. Measure your waist where the waistband will sit and compare it with the guide. If you are between two sizes, choose according to whether you prefer a snug or a slightly looser fit. Trunks that are too small press on the thighs, while those that are too big slide down. The waistband should lie flat without rolling and without leaving deep marks.
Getting used to the feeling
On the first day, trunks may feel close if you are used to air around your legs. Most people get used to them within a few days. Wear them first on an ordinary day and notice whether the legs ride up when you walk. If they do, a style with a slightly longer leg may suit you better. Viscose feels cool, and that makes the change easier for many people.
Washing and care
Wash at 30 to 40 degrees with similar colours and hang to dry. A tumble dryer wears out the elastane and can make the waistband slacken over time. Skip the fabric softener, since viscose is already soft. It also helps to turn the underwear inside out when washing to protect the surface. If you keep an eye on the sale for men, you can add to your drawer once you know which size fits.
Brands and styles
Brands differ in leg length, waistband width and fabric weight. Some trunks have a pouch at the front for extra room, while others are flat. A brand such as JBS is one example of the labels you can compare. Start with three pairs and decide after a week whether you want to switch completely or keep both types in the drawer.
Frequently asked questions
Are trunks warmer than boxer shorts
They fit more closely, but viscose is breathable and feels cool. Many people notice little difference.
Can trunks be worn for sport
Yes. They support you and stay in place, and there is no loose fabric to rub.
How often should they be replaced
When the waistband slackens or the fabric becomes thin. Gentle washing extends their life.
