Floral Om Symbol Full Zip Hoodie. It is fully machine washable and can be ironed on the reverse. The hoodie features two front pockets, a quality YKK zip and a drawstring hood. The Om symbol (AKA Aum) has its roots in Hinduism. Om is a sound; the one vibration behind all vibration. The symbol which is printed on this zipped hoodie is made from hundreds of tiny colourful flowers, giving it a psychedelic incarnation.