At about 1800 c.i. you might find it a bit small, depending or what you choose to carry. Also, if your carry weight is over about 15-20 lbs, you might prefer a pack with a frame capable of shifting the load from your shoulders to your hips. But REI does make reliable gear, so if the "one size" fits your body, and the weight and volume of your gear fit within the pock's limits, you are good to go. I like the fact that the colors of the pack are subdued, without looking "tactical." A wise choice, in my opinion.

Jeff