See-thru Sil-Nylon fabric allows you to see what"s inside * Zippered access allows fast loading and secure storage * Convenient haul loops for grabbing and hanging * Square shape stacks great inside your pack * 0.6L: 0.5oz 2.75 x 2.75 x 2.75"; 1L: 0.56oz 3.12 x 3.12 x 6.7"; 1.7L: 0.67oz 3.5 x 3.5 x 8.25"; 2.4L: 0.74oz 4 x 4 x 9.5"