Lululemon Devotion long sleeve tee, XS/S (6?)

Lululemon Devotion long sleeve tee in classic stripe black white/heathered black. Worn and some pilling and grayish discoloration in armpit area, but still lots of life left in it. Unsure of size (tags cut out), but fits like XS/S. May be a size 6, based on guess from measurements. Bust (pit to pit): ~15” flat Length (shoulder to hem): ~28”