Deuter Futura Air Trek vs Gregory Katmai & Kalmia Packs

https://mountainsforeverybody.com/deuter-futura-air-trek-vs-gregory-katmai-kalmia-packs
Both Deuter and Gregory brands have recently launched their new series Deuter Futura Air Trek, and Gregory Katmai and Kalmia. So which is better? Find the answer here.