Type sizing is based off of a relative scale, with 16px type as the baseline for body copy and for scaling type.

When to use Sans vs Mix
When type setting a headline, consider the use case, and use the appropriate option between Season Mix, or Season Sans.
Overall, Season Sans should be used the bulk of the time ~80%, with Mix being used for special use cases.
Aspirational, Top-Level
Season Mix for top of the funnel, more aspirational, lofty or abstract headlines, use Season Mix.
Concrete, Mid-Level
Season Sans for mid of the funnel, more concrete, mid-level headlines, use Season Sans.
