Fashion Seal 450 fluid resistant lab coat. The front is made of a blend called Fashion Shield: A high count, densely woven fabric employing 100% continuous filament man-made Polyester yarns; offering excellent fluids resistant properties. The back of the lab coat is made of cool, comfortable 65/35 poly/cotton poplin. There are also two handy, front patch pockets. The approximate length for size M is 42.5".