Osprey Aether 75 backpack, size M (Fremont-Sundale/28 Palms)

blue & black, size medium, 75 L (4500 cu in) capacity
circa 2005 vintage. here's a good description: https://www.trailspace.com/gear/osprey/aether-75/
All buckles & zippers functional. The waterproof coating on the inside is starting to wear off though.
Empty weight about 5.5 pounds.
Still the most comfortable pack I have ever worn, but too big for the kinds of trips I do at my age.
The pocket for a hydration bladder is in the lid instead of the main compartment, which makes for a slightly odd weight distribution when fully loaded. But this allows you to use the lid as a fanny pack when combined with the hip belt. Nice for trips where you're doing day hikes from a base camp.