According to Toyota's website:
SR5 PACKAGE --
Regular Cab includes cruise control, remote keyless entry, power outside mirrors, engine skid plate and SR5 seat fabric.
Double Cab and
CrewMax include Tow Package and Cold Weather Package only. All models include styled steel wheels.
When ya go to the DC & CM those before mentioned items are STANDARD (except the SR5 fabric is not mentioned) according to the website. Bench seat is standard on DC, buckets optional.
Everything is listed and sorted clearly on the website.