Keep your things dry in packliner.It is made from 30D Ultra-Sil CORDURA brand fabric, making it super lightweight and is an oval shape to fit inside packs easier. The extra wide opening roll-top closure folds in three before being rolled and sealed with the low profile buckles. We have used bright colors to help with visibility when packing and unpacking, and a 50L, 70L and 90L size range to cover all options and bag sizes. Ultra-Sil Pack Liner opens wide for easy packing when it's inside a pack Unique top closure: extra fabric at the top folds in and hook and loops into place, then rolls down, creating a more compact closed loop at the top Made of PU coated siliconized CORDURA® Waterproof hypalon roll-top closure does not wick moisture Waterproof seams - double stitched and tape sealed Low profile buckles Slippery finish for easy packing Colour : Sky Blue , Green,Orange Weight : 50l,70L,90L Size : Small,Medium,Large