Multi-filament nylon mesh for strength,Gray mesh for better visibility and round base design. High quality mesh for better visibility and round base design,weight is very light. Double stitched and reinforced seams for greater durability. Mesh Stuff Sack with drawstring closure makes it easy to get things stored and anti-leak. Multiple strengthened points to avoid seam breaking, sliding or bursting, etc. Ultra light material, convenient for carrying. Folds small for easy storage when not in use. Great for survival, hiking, camping, fishing, traveling, and gift idea, recreational. Description: Ultra mesh stuff sacks are some of the lightest stuff sacks available to organize gear in your pack, suitcase, or bag. It uses an advanced multifilament nylon mesh only recently developed. These stuff sacks are lighter than its ultra silk stuff sacks and have to been seen to be believed how small and light they really are! Multi-filament nylon mesh for strength Gray mesh for better visibility and round base design Ultra Silk nano draw- cord throat for smooth operation Double stitched and reinforced seams for greater durability Many people use this item for survival, hiking, camping, fishing, traveling, and gift idea, recreational Specification: Material: Mesh Size(S): Approx 9.84 x 7.09 inch/ 25 x 18cm (blue) Size(M): Approx 12.60 x 9.06 inch/ 32 x 23cm (orange) Size(L): Approx 16.14 x 11.02 inch/ 41 x 28cm (yellow) Size(XL): Approx 16.9 x 13.7 inch/ 43 x 35cm (blue) Size(XXL): Approx20.5 x 12.2 inch/52 x 31cm(black)