Made with crystal clear k resin and with an innovative new cap design the crystal ombra is the next step in the evolution of elite39s racing bottle design k resin is not only beautifully clear and taste free but has strong anti bacterial properties that make it on of the safest materials available for storing fluids cap features an oversized nozzle that is taste free softer on the mouth and delivers fluid faster than conventional versions as with the original corsa the ombra39s ca