Hide & Seek Fixed Bike Tee – $22 [exact]
Sierra has also worn a similar shirt in yellow.
exact: Hide & Seek Clothing Bird Pullover S/S – $40
[screencap from this video]
Hide & Seek Clothing Black Logo Pull-Over Hoodie – $45 [exact]
Hide & Seek Clothing Grow To LOVE Cardigan – $36 [exact]
American Apparel Unisex Poly-Cotton Stripe Crew Neck – $22 [similar]