The Kelty Glendale 65 is a 65-litre backpacking pack weighing 2150 g, working out to about 33 g per litre — a middling figure that points to a supportive, adjustable build rather than an ultralight minimal one. The Fit-Plus system lets you dial in torso length and hip belt position, which matters more on a 65 L pack loaded for multiple days than on a small daypack, where a slightly off fit is easy to live with.
Kelty rates it for multi-day trekking with a recommended trip length around a weekend — one to two nights, so roughly two to three days out. That places it as a load-hauler for a moderate resupply cycle rather than a thru-hiking pack meant to carry a week or more of food; at 65 L it also has more room than most hikers need for a single overnight, so it makes most sense when winter layers, group gear, or a longer weekend push the packing list past what a 40–50 L pack can hold.