What are your guys' favorite backpacks for backpacking? I've gotten really into backpacking this past year and have just been borrowing my school's old North Face Terra 65. I really like that pack, but want to explore all of my options (there are so many!) before I make a purchase. I'm looking at something that's 60-65 liters and either unisex or for women specifically. I also want something that's not going to fall apart after a few uses, but also would really prefer not to spend more than $250. TIA for any advice!