A version of this story originally appeared on the Strategist U.K. This affordable, surprisingly sturdy T-shirt is available in the United States, so we’re syndicating it here.

Because of the denser fabric, heavyweight tees also hang and fall slightly differently, behaving more like sweatshirts or hoodies. This also gives them a more deliberate look, not just for slouchy sports-inspired looks but when you dress them up, too. When you start shopping, you’ll see ‘gsm’ a lot in the product descriptions. This stands for grams per square metre and it measures the weight of the fabric. Brands that are serious (and a little nerdy) about their T-shirts will tell you what gsm they are. For heavyweight styles, you’re looking for 200 gsm (equivalent to 6oz) and above. Japanese brand Power House isn’t trying to change the game with its heavyweight T-shirts. Using US-made cotton, woven into a dense jersey, these are the perfect, relaxed fitting tees. The only thing differentiating a heavyweight T-shirt from a regular one is the fabric. While your typical tee will be made from a light cotton jersey and weigh seemingly nothing, we’re talking about fabrics that come in at 6oz and above.