Atoms Multiply takes a closer look at the physics of things! Molecularly speaking, patterns and repetition are the buildIng blocks to success! Featured on our Adult 100% Organic Cotton Short Sleeve Ring Spun Tee. Pre-shrunk 4.5 oz. 100% certified organic combed ring spun cotton jersey. A great shirt bound for your favorite T-shirt drawer.  Featured on our Ladies short sleeved tee shirt. Fabric is 100% certified organic cotton, 5oz and is cut to fit a woman's body. Super soft and comfortable.