We got tired of training in a trash bag, so we made a hoodie

It keeps your body heat in, so most guys sweat more in the workout they already do. It looks like a normal black hoodie.

By the Kewlioo team
Updated October 2026

A silver plastic sauna suit stuffed into a black trash bin, with a folded black Kewlioo hoodie on the wooden bench beside it

See the hoodie

We used to train in a plastic sauna suit.

Why the suit ended up in the trash

It crinkled on every rep and tore on the mat. Everyone in the gym could see it.

We wanted the same heat in something you'd wear in front of people.

See the hoodie

So we built it as a hoodie

Inside is a smooth gray lining that holds your heat in. Your body cools itself by sweating, so most guys sweat more.

Man in the black hoodie pulling the hood open to show the smooth gray lining inside, with drops of sweat on it
The gray lining inside the hood. See it up close

Outside, it looks like a plain black hoodie.

It's light and doesn't feel like plastic, so you can lift and hit the bag in it.

Sizes go from S to 4XL. It fits true to size, so order the size you wear in a normal hoodie. Choose your size

You get 30-day returns if it's still in new condition.

What changes in your workout

You get warm fast. You notice it most in a cold garage at 6 a.m. or on a winter run.

Then you sweat. By the end of your workout, the gray lining is wet.

The same man in the same locker room after two sessions: on the left he sits on the bench in a gray tee with a normal sweat mark at the collar, a regular gray hoodie over his shoulder, on the right he stands holding the black Pro Sauna Hoodie, gray lining showing, with a much bigger sweat patch down the chest of his tee
This is a drawing, not a photo. Left: the tee after a normal hoodie. Right: after this one.

These reviews are from our sleeveless sauna hoodie, word for word. This one has sleeves.

“In 20 minutes on the treadmill I am sweating more than 45 minutes with a normal t shirt. Awesome!”
Marvin v. D., review of the Pro Sauna Sleeveless Hoodie
“I train with it in the gym, in the garage and outdoors. The fit is comfortable and you get an incredible sweat.”
Dwayne P., review of the Pro Sauna Sleeveless Hoodie
“I was worried that it would not fit but It is a true fit. I wear XL.”
Lorenzo S. J., review of the Pro Sauna Sleeveless Hoodie
Selfie of a sweaty man in the black Kewlioo hoodie, gray hood lining at the neck, in front of a dumbbell rack in a gym
Choose your size

Buy the 3-pack and the 3rd hoodie is on us

The 3-pack costs about the same as two.

It goes in the wash after every workout, so some people like having three.

You also get 20% of your order back as Sweat Cashback store credit.

Man pinching the chest fabric of the black Pro Sauna Hoodie, with the drawcords, small white logo and kangaroo pocket in view
Get the 3-pack

Ships free in the US over $80.

Want just one? See the single hoodie

Prices are on the next page, in your currency.

Over 2 million people have bought from Kewlioo.

See the hoodie