The Crown3 lets you take pieces off until it's your pack
Around 2.4 pounds in its base configuration, 60 litres of roll-top capacity. Those two numbers together are the reason this pack has the reputation it has, and the reason I keep recommending it to people making the jump from traditional gear to lightweight.
Here's what makes it different from most ultralight packs: it's designed to be taken apart. The frame sheet is removable. The lid is removable. Every one of those pieces is weight you can shed once you know you don't need it. The advantage is obvious ā you tune the pack to the trip instead of carrying structure you're not using. The benefit is that you get to learn what you need, on trail, rather than guessing in a shop. That's a much better way to arrive at a customizable ultralight setup than reading forums.
Load carrying holds up when you keep the frame in. The Re-Fit hip belt adjusts to your actual hip measurement, and load-lifter straps pull the top of the pack in toward your shoulders. That combination is why the Crown3 tolerates a heavier resupply-day load than most packs in its weight class. My standard field note applies: get the hip belt sitting on the crest of your hips and tighten it before the shoulder straps. Every time. It's free comfort and almost nobody does it.
The pocket layout is trail-first. Large stretch side pockets take bottles you can reach on the move, and a big front mesh pocket swallows a wet fly, a shed layer, or the food you'll eat in the next hour. Roll-top closure compresses the load down as your food bag shrinks, and it's hydration compatible if you'd rather sip than stop.
Real talk on the trade-off: stretch mesh is grabbier on rock and scrub than solid fabric, and it will eventually wear. That's the cost of the reach-and-stuff convenience, and for most people it's worth it. If you're ready to go lighter without buying a pack that punishes you on a heavy day ā this is the one I'd start with. Go take a look.