Choose an Armor Type
For this system, you can choose between light armor or heavy armor. Your armor’s type and item level determine its base statistics for EAC bonus, KAC bonus, maximum Dexterity bonus, armor check penalty, number of upgrade slots, and perks. Determine your armor’s base statistics for its type and item level by referencing the appropriate armor progression table below. Some perks and flaws modify these statistics further.
Bulk: Light armor has a starting bulk of light bulk. Heavy armor has a starting bulk of 2. Some perks and flaws modify these values but can’t reduce the bulk below light bulk.
Source
Starfinder Enhanced pg. 141