jack wolfskin Athmos Shape 20 Unisex Backpack Size:ONE SIZE the FLUIDRIDE outsole helps create

the FLUIDRIDE outsole helps create smoother transitions between strides

reflective design elements and PUMA's signature dryCELL technology

The midsole surface features horizontal channels carved by the wind to make each stride smoothly flow through the air

the Phase Backpack is both stylish and functional

jack wolfskin Athmos Shape 20 Unisex Backpack Size:ONE SIZE the FLUIDRIDE outsole helps createColor: Silver Allover The super lightweight ATHMOS SHAPE 20 is a great pack for energetic day hikes. The innovative AEROSHAPE back system is well ventilated and makes the pack extremely comfortable to carry. The back system has an S shaped design that mirrors the anatomical curve of the spine. This design ensures a full contact fit and good freedom of movement. There is also a soft EVA foam on the back with large air vents for enhanced climate