XS Scuba Switch Mask Kit Includes Lens Filters, Mask Bag and Caddy and Bonus Magenta Filter The Switch mask has a unique slot in the top of the frame that allows the diver to quickly and easily drop in a variety of functional lens filters. The drop-in lens filter resides in front of the masks permanent lenses. Lens Filters Included: Magenta,Tinted, Red and Amber The Switch Mask Bag is designed exclusively for the Switch mask. It is the perfect way to protect your SWITCH mask and all of its associated lens filters. The Switch Lens Filter Caddy is the best solution for managing your Switch mask lens filters during your dive.