Abstract: A window shade manufacture (20, 60, 64) for eliminating light, glare or the like, or achieving a non-observation purpose, through a vehicular or other window pane (21). A collapsible curtain (22) having a hem (30) is supported by a cord (34) that projects beyond the hem (30) to form cord extensions (35). Suction cup members (40) through which the cord extensions (35) project apply the curtain (22) to the window pane (21) while releasably slidable button members (38) are mounted on the cord's extensions (35) beyond the members (40). Members (42) slide into proximate positions adjacent their corresponding suction cup members (40), wherever the latter may be applied to the window pane (21), and thereat produce a desired slack or tension in the cord (34) disposed between the spaced apart suction cup members (40). Collapsible curtain (22) is positionable along the cord 34 as desired to achieve the noted purposes, and the manufacture is tucked away in a relatively small compact bag (27) when not in use.