Cheekys-
Regular size fits from a Small up to a Large. The Plus size will fit an XL to XXX. They do have sleeves and have a nice loose fit just below the elbow.
Regular ~ Total length 46"/ Bust 46" / Shoulder width 18.5"/ Sleeve width 11.5"/ Sleeve length 15"
Plus ~ Total length 51"/ Bust 53" / Shoulder width 22"/ Sleeve width 13"/ Sleeve length 16"