I used this sleeping bag on my 150 day backpacking trip from Mexico to Canada along the Continental Divide. The 800 fill hydrophobic down kept me warm through springtime Colorado snowstorms (even when damp), while the knee-length zipper provided sufficient ventilation for warm desert nights when unzipped. I’m 6’3’’, and the long size gave me enough space to move around without being too drafty. This bag is great for anyone attempting an ambitious backpacking trip or trying to lighten their pack weight without sacrificing warmth, and the color will keep the inside of your tent bright and cheerful!