Cotton gauze scarf, with a finished length of 72" (1.8 m), including 3" (8 cm) fringed ends, and a finished width of 24" (61 cm). Fringe is shown unfinished at top right and knotted every 0.75" (19 mm) at bottom right.
Lately, I've seen many versions of the summer scarf, a wide scarf (call it a wrap if you'd like) with fringed ends. It comes in a lightweight, semi-sheer fabric about 2 yd (1.8 m) long and about 15" (38 cm) to 30" (76 cm) wide. Here's a sampling:
Anthropologie macaw wrap, 70" by 27" in mint-colored linen.
Anthropologie crepuscular wrap, 67" by 19.5" in white cotton.
Banana Republic cotton woven wrap, 65" by 30" in semi-sheer white or blue.
Urban Outfitters crinkled linen scarf, 70" by 16" in brightly-colored gauze.
Urban Outfitters floral gauze scarf, 69" by 18" in linen-polyester.
Michael Kors linen scarf, 80" by 25" in white or tan demi-sheer linen gauze.
You'll need about 2 yd (1.8 m) of lightweight woven fabric, like cotton voile, cotton gauze, or linen gauze (although I couldn't find any linen gauze myself--any tips?--and had to settle for cotton gauze). Cut a rectangle of fabric as shown in Diagram 1.
Fringe the two short edges of your fabric rectangle by pulling out the crosswise threads until you have about 3" (8 cm) of fringe (or until you can't stand it any longer). A seam ripper is helpful to grab individual threads.
Next, hem both long edges of the scarf by folding each edge 0.25" (6 mm) to the wrong side twice and sewing along the inside hem edge. See Diagram 2.
Leave the fringe unfinished or make tassels from it by knotting the fringe in regular intervals, such as every 1" (25 mm).