5.6oz (190gsm) heavyweight teeMade up of 100% pre-shrunk cottonFits true to size with an ideal amount of stretchRelaxed and soft fit designed for comfort and style. They are called Okami (淤加美), derived from one of the ancient spellings of Kuraokami, a dragon deity of rain and snow from Japanese mythology. This primordial serpent is often depicted in the sky with lightning forming in its presence.