Bristol is a less expensive sheet with a higher bulk than typical cover and heavier text weight papers.
11x17 67 lb paper.
Springhill gray colored cardstock paper 67lb vellum bristol 147 gsm 11 x 17 card stock 1 ream 250 sheets lightweight cardstock with vellum finish 066004r 4 7 out of 5 stars 1 235 21 99 21.
Accent opaque white cardstock paper 80lb cover 216 gsm 11 x 17 card stock 1 ream 200 sheets heavy cardstock with smooth finish 188092r 4 7 out of 5 stars 955 15 69 15.
Exact vellum bristol offers 57 lb 67 lb and 80 lb bristol weight in pastel white and off white colors.
Springhill white cardstock paper 110 lb index 199gsm 11 x 17 card stock 1 ream 250 sheets heavy cardstock with smooth finish 015334r 4 6 out of 5 stars 636 20 90.