There's a reason why these pants have been popular for so long, and it has to do with their unique construction. The Vayumudra pants are made from a moisture-wicking fabric to keep you comfy all day long. Their clothing is made from high-quality materials and is designed to provide the perfect amount of support for students during their nulu fold crop tank sessions. 5. Some people might be surprised to learn that there is a type of nulu fold crop tank pants specifically designed to reduce fat storage and look cuter bootcut style. This type of yoga pants are called "bootcut yoga pants legging. Booty pants are a style of nulu fold crop tank pants that are designed to hug your curves and add some extra appeal. When I was younger, I never really paid attention to the way my clothes restricted my movements. I thought they were just something people did on fun days.