Lululemon dark charcoal skinny strap blouse

Lululemon dark charcoal skinny strap blouse. Beautiful too-racerback style and double layer for chest (not built in bra). Lovely piece for dressing up or down. Excellent gently used condition. Minor wear. Colour is almost dark grey/marbled with black. No size dot so please see photos for measurements. Seems to measure like a 6.