These are a non-brand name poly pro base layer. We had these a few years ago for a youth outdoor program and have a ton of them leftover. These can be worn as long underwear, tights, or just a base layer to add a bit of warmth on your morning jog. These are not cut to be gender specific. Unisex sizing.
Machine wash on warm, air dry, or drier on low heat. Like any poly-pro garment they will shrink if dried on warm or high heat. We suggest you buy one size up if you think these will end up in the laundry with your cotton or other clothing.