Colorful tanks that brighten your day and somehow make your shoulders look more toned (I don't know how they do it!). My favorite are the Lululemon Scoop neck and Power Y tanks.
Leggings are so flattering, I usually wear my Lululemon Wunder Unders with long sweaters too, outside of working out. These leggings are supposed to last to up to 10 years -- mine are certainly keeping up quite well so far.
These Old Navy bras are so comfortable and quality, yet ridiculously inexpensive. Score.
I love how this GapFit Motion graphic T keeps me warm during an outdoor run. Also this grey pattern looks incredibly sleek (the curved side graphic nicely nips in the waist).
Asics are by far my favorite brand of sneakers. So comfortable! These running shoes have a rearfoot gel cushioning system which helps soften every step's impact. Also, coral and black is a badass color combination.
What are your favorite workout pieces? Any items that you swear by? I'm obsessed with all things Lululemon because of their free in-store tailoring-- being 5'1" I literally tailor all of my tops and leggings!