Women's L.L. BEAN size XS Reg 1/4 Zip Lightweight Activewear Top. Thumbholes, back hip zip pocket, and reflective dots. Item # 288015. Small spot near hem on back middle panel. Otherwise, good pre-owned condition.

Approx measurements:
Armpit to armpit: 17.5"
Length: 24"
Sleeve: 28" from collar