I wanted an inexpensive, light, spacious, sturdy pouch for my everday tote, and the Eagle Creek Sac fit the bill. While the Sac may look like mesh in photos, it's actually made of water-resistant, soft plastic that's neither entirely opaque nor transparent. It also has a handy hook and loop for extra security; I pulled a safety pin through the loop into my tote's lining to fasten them together. On rainy days, it's a convenient place to put my wet umbrella so that my tote's other contents remain dry.