This Onyx Sweatshirt from Charles River Apparel is my absolute favorite piece of outerwear for any workout, whether it's a quick tennis game or a hike. Not only is it incredibly soft and warm, but it's also lightweight. Oh, and purple. :-) Instant winner!
While I usually choose Nike's tennis shoes, I LOVE these ones from Sketchers. They are from the Awareness collection, which benefits the American Breast Cancer Association. If that's not a purchase to feel great about, I don't know what is.