Ultimate Direction Mountain Vest 5.0 Backpack - BlueProperties: The Mountain Vest 5.0 is a completely new version of a tuned backpack signed by Tony Krupicka. New, lighter and very durable materials were used. The Mountain Vest with a capacity of almost 14 liters (which would not be ashamed of tourist backpacks) weighs 230 g. As usual, Ultimate Direction leads the way in creating functional equipment - a lot of pockets and nooks and crannies for transporting the necessary equipment. Front elastic mesh pockets are phone compatible. The vest includes a main compartment with a zipper, a compartment made of elastic material with a hook, space for a 2L water bag, two closed pockets on the sides, pockets on the front, including one with a zipper, additionally pockets with 2 soft 500 ml water bottles. Comfort Cinch ™ 2.0 technology - more minimalist, ensures quick and accurate fit of the vest to the body. The shape of the harness facilitates weight distribution and ensures a comfortable fit. Sizing Chart (Chest) (Unisex): S: 58 - 81 cm M: 76 - 99 cm L: 94 - 117 cm Measure the circumference in the clothes you plan to run in. A packed backpack is tighter.Specification: The poles can be attached to the front Front elastic mesh pockets are phone compatible A drawstring at the back reduces the size of the backpack or is used to transport the jacket Zippered main compartment with 2 L water bag compartment 2 0.5 l soft water bottles included Additional side pockets with velcro Transport capacity: 13.4 litersHydro capacity: 2 x 500 ml (plus an optional water bag)Weight: 230 gMaterials: Flex Mono Mesh, MicroMono Mesh, 30D Nylon 66 sil / pu, 4-way stretch Nylon / elastane with high breathability