>>90749I would be wary of any lightweight bag for multi-day trips. Especially one which is only rated to 30lbs.
The most important thing is that it can actually transfer the weight to your hips, a solid back panel and waist support makes this happen and those are what make packs on the heavier side.
I'm not saying it's a bad pack, I know nothing about it, but those are what you need to watch out for.