15D Silnylon Ultra-Thin & Ultralight UL Stuff Sack 3-Size Set The sizes in the product description refer to the width when cylindrical x the length when not expanded. Actual photos: From the 6th photo onwards Due to the nature of the product, there may be some folding wrinkles. This is an unused item that was taken out for photography. ***Product Description*** Sizes: Large 20 x 40cm / 21g / approx. 12L, Medium 16 x 33cm / 14g / approx. 6L, Small 12 x 32cm / 10g / approx. 3.2L (※There may be slight variations in size) Colors: Large - Orange, Medium - Chartreuse Green, Small - Sky Blue (※The color of the string may change depending on the arrival time. ※Although it is a waterproof fabric, the seams and the opening of the bag are not completely waterproof, so please consider it as a simple waterproof.) Despite being an ultra-thin and ultralight 15D material, the fibers are fine and highly dense, achieving high strength and abrasion resistance. It is a siliconized PU-coated nylon, so it has excellent surface smoothness and a smooth, soft feel. The ultra-thin material allows the contents to be seen slightly, making it easy to see what's inside, and the smooth surface makes it easy to put in and take out of bags and backpacks.