These are the improved organic cotton version of Aspire's revolutionary Bottom-Vertical-Coil (BVC) atomizers for the Nautilus, Nautilus 2 and Nautilus Mini. Aspire made their mark within the vaping industry with their remarkable Bottom-Dual-Coil atomizers, which perform and function remarkably well. They have truly outdone themselves with this ground-breaking new atomizer technology. These new coils are designed with a organic cotton wick, providing for a substantially cleaner, purer, and more flavorful taste. The vertical coil design also produces an intensely flavorful hit, coupled with massive vape clouds.