DurabilityFabric with tight weave so you can wear a backpack without any risk of tearing.
BreathabilityUse of a thinner fabric on the sides and inner sleeves
WindproofAdditional protection from the wind (fabric without windproof membrane).
Freedom of movementBi-extensible fabric with integrated thumbhole.
WeightCompressible and light (360 g in size M). Ideal for the bottom of a backpack!