The unique air vent virtually eliminates splash water entry and provides an opening greater than the tube bore for excellent clearingnLarge reservoir at the base keeps residual water out of the breathing pathnPatented Comfobite mouthpieces, which does not require the user to clench their teeth, eliminate jaw fatiguenAn optional, smaller size Comfobite is availablenComfobite mouthpieces are replaceablenThe SideDraft snorkel is designed to minimize resistance and vibration in the water due to it unique tube profile and provides a tried and true snorkel with many great features for the price.