Great Muscle workout tank! I love that this top keeps me cool and comfortable during my toughest workouts. For sizing, I am 5'6 in height and 136 pounds, and I purchased the unisex size small, fits great with a little extra room over a black sports bra. I have also been pairing this muscle tank top with Runyon's Retro Ranger 4" performance running shorts in the forest green color. I highly recommend adding this to your workout wardrobe.