Octo Rock UV Graphic Tee. This cool blue octopus is revealed under sunlight—he rocks out with all 8 of his tentacles on this super-fun tee. Looks great over shorts or joggers. 100% soft cotton jersey. UV reactive artwork elements appear when exposed to the sun, Standard fit, Crew neckline, Short sleeve, Above thigh length, Interior neck tape for lasting quality, 100% cotton jersey, Machine wash.