Gregory - Katmai 55 - Walking backpack. Inserts: 100% polyamide|Material thickness: 210 denier|Sustainability: contains recycled polyamide|Sustainability: PFC-free|Sustainability: contains recycled polyester|Carry system: breathable shoulder straps|Carry system: hip belt|Carry system: chest strap|Carry system: mesh back|Carry system: aluminium frame|Carry system: adjustable torso length|Main compartment access: side zip opening|Main compartment access: Toploader|Venting: mesh inserts|Additional features: bottle holder|Additional features: 2 lid compartments|Additional features: eyewear pocket|Additional features: ice axe/pole holder|Additional features: front compartment|Additional features: hip belt pocket|Additional features: bottom compartment|Hydration system: compatible|Rain cover: incl. rain cover|Volume: 55 l|Reference size: Size L|Extras: incl. emergency whistle|Sustainability: PFC-free|Sustainability: Recycled Material|Volume: 55