Yes — it is cut oversized by design, with dropped shoulders and a long body. Based on the product details, if you are between sizes and prefer a less roomy look, take the smaller size.
Yes. It is a dense, brushed weave with real weight to it — it layers over a tee or tank the way a light shirt-jacket would.
One — an open patch pocket on the left chest. There are no side or hip pockets.
Rarely. The brushed, slightly fuzzy surface hides light creases; hanging it after a wash is usually enough.
Yes, closely. Brown is a deep espresso-and-cream check; Navy Blue is a navy-and-grey check that can read near-charcoal in low light.