If you usually toss your underwear into the washing machine with the rest of your clothes it might be time for a little upgrade in your laundry routine. A lot of men’s underwear is made from soft, delicate fabrics that don’t go well with the regular washing machine cycle.That’s why washing them the same way you do your jeans or towels can cause your favorite undergarments for men to shrink, lose elasticity, or even tear over time.

So if you want your boxers, boxer briefs, or undershirts for men to stay comfortable and last longer, here's a simple guide on how to wash them properly.

Wash Underwear Separately

One of the biggest laundry mistakes is throwing the underwear with the rest of your laundry load, for example washing your underwear with other heavy items or gym clothes as this can contribute in them being worn out faster 

The best approach? Wash your underwear on its own or with other delicate items like undershirts for men or cotton socks. If you have to mix a load, go for a lower temperature and slow down the spin cycle. And if you want to really keep things tidy, throw your underwear into a mesh laundry bag to protect it from stretching or tangling.

Use a Gentle Cycle

Your washing machine probably has a "delicate" or "gentle" setting, use it. This cycle is designed for lightweight, fragile fabrics, which is exactly what most undergarments for men are made of. Stick to cold or warm water and reduce the spin speed to avoid damaging the fabric.

Different materials handle heat differently. For instance, cotton underwear or polyester blends can tolerate slightly higher temps (90–110°F), while more delicate fabrics like bamboo, silk, or wool should be washed in cooler water, around 60–80°F. And if you’re not sure Just check the care label before putting them into the washing machine.

Hand Wash Extra-Delicate Underwear

Got some luxury or premium men’s underwear made from silk or merino wool? These types of delicate fabrics should only be washed by hand. It's a bit more effort, but hand washing in cool water is the gentlest way to care for delicate fabric.

Whether it's your go-to boxer briefs or a premium pair, hand washing will help them stay soft, supportive, and in top shape for much longer.

Skip the Fabric Softeners and Bleach

Fabric softeners sound like a good idea. But when it comes to underwear and undergarments for men, they’re actually doing more harm than good. Softeners can clog up fabric fibers, trap odors, and even cause irritation, none of which you want near your skin.

Instead of using fabric softener, try adding a splash of vinegar during the rinse cycle. It helps kill odors and keeps your underwear fresh without damaging the fabric.

Bleachers also are not a good idea on your gentle fabric. While it’s great for brightening your white underwear, it’s super harsh on delicate materials and will shorten the lifespan of your men’s underwear. If you need to fight stains or sanitize, try a gentler oxygen bleach or a laundry sanitizer.

Air Drying Is Your Best Bet

You can toss your underwear in the dryer, but the heat can really wear down elastic and delicate fibers over time. If possible, hang dry your undershirts for men, briefs, and even your cotton socks. It's the safest way to dry your garments without shrinkage or heat damage.

If you do use the dryer, choose a low-heat or delicate setting, and always make sure everything is 100% dry before you fold and store.

What’s the Best Fabric for Men’s Underwear?

When it comes to underwear, fabric matters more than you might think. The material you choose affects everything, comfort, breathability, how it holds up in the wash, and even how fresh you feel by the end of the day. Whether you're shopping for everyday men’s underwear, undershirts for men, or even basics like cotton socks, knowing your fabrics can help you pick the right gear for your lifestyle.

Let’s break down the pros and cons of the most common materials used in undergarments for men so you know exactly what you’re getting into.

Cotton

Cotton is the classic go-to for a reason. It’s soft, breathable, and easy to take care of. Plus, it’s affordable, which makes it a top choice for men’s underwear and basics like cotton socks. If you like a natural feel against your skin, cotton is your best choice 

But there’s also cons to Cotton materials  as they hold moisture, so it can feel damp if you’re sweating. It also takes longer to dry and may shrink a bit if you’re not careful with the wash. Still, for everyday wear, it’s a solid and dependable pick.

Modal & Bamboo

If you’re looking for premium comfort, modal or bamboo fabrics are a dream. These are silky smooth, moisture-wicking, and naturally antimicrobial, which means they help fight odors and feel fresh all day. Modal is made from beech tree pulp and is even biodegradable, so it’s a more eco-conscious choice for undergarments for men.

But what can be their downsides? They’re a little more delicate in the wash and cost more than basic cotton. But if you’re looking to invest in a more luxury pair these are a great choice.

Synthetic Blends (Polyester/Nylon)

For guys who are always on the move or hitting the gym, synthetic blends are a smart option. Fabrics like polyester and nylon are known for drying quickly and holding their shape. But they’re not without flaws. Synthetic blends aren’t as breathable as natural fibers,  so if you wear them, make sure you're washing them thoroughly to keep them fresh.

In the end taking care of your underwear the right way is what’s going to keep them longer and also choosing the right material for your needs will keep you feeling comfortable, supported, and fresh, day after day.