Mammut - Trion Nordwand 15 - Mountaineering backpack. Material thickness: 100 denier|Other material information: Mammut Connect|Sustainability: PFC-free|Sustainability: contains Fair Wear certified fabrics|Carry system: chest strap|Carry system: shoulder straps|Main compartment access: side zip opening|Main compartment access: Toploader|Additional features: 2 side mesh compartments|Additional features: key clip|Additional features: inside compartment|Additional features: ice axe/pole holder|Additional features: front zip pocket|Additional features: rope holder|Hydration system: compatible|Volume: 15 l|Reference size: medium size|Extras: compression straps|Extras: roll-top|Sustainability: Fair Wear|Sustainability: PFC-free|Volume: 15