Hello!

I've never gone for any "serious" trekking-trips before, and I'm planning on going for a 7-day trip this summer in the north of Sweden (Kungsleden), and I'm trying to figure out what kind of backpack I should get. I weight about 75kg and I'm about 185cm tall, average built.

I will most likely do a longer trip next year (we have not decided where we will go, but we will probably be out for >10 days). I'm studying Geology so I will very likely be going on longer excursions in the future.

Right now I'm considering the Osprey Aether 70l, Osprey Argon 70l or the 85l. I've tried them and they feel really comfortable and it have received many good reviews.

Do you have any other backpacks you would recommend?
I'm really having a hard time deciding how big of a backpack I should get. Is 85l overkill, or is it best to get that big of a bag? The price for the Argon 70l and the 85l is identical.

Appreciate your help!