AirTrim Cold Weather Mask Replaceable Filters (2-Packs) Type:Racing1 This is a larger surfaced

This is a larger surfaced cork with a nice wooden handle for more comfortable grip when corking

The FLUOR-FREE Nano High-Speed base material (NHS) shows up best at high speeds

All in a handy portable box

Doesn't come with any foam or pre cut slots for the most creative opportunities for wax box organization

AirTrim Cold Weather Mask Replaceable Filters (2-Packs) Type:Racing1 This is a larger surfacedFind the right amount of filtering for your training racing effort level and comfort. These two pack filters allow you to switch out filters from your AirTrim mask so you can breathe comfortably with your preferred heating vs. airflow level. Filters come with five levels of filtering. The rolled corrugated plastic in the filters is coloured white or blue. White filtering plastic offers more heating and less airflow, while blue plastic filtering