Lululemon Commission Qwick Oxford shirt.
Cotton/poly stretch blend in gray.
Hidden button down collar & chest pocket.

Excellent condition - no holes, no stains.

Size tag removed - dimensions suggest small in most brands but is likely their slim tapered medium.
Measurements in inches:
pit to pit 20.25
waist 18.75
shoulders 17.5
sleeves (shoulder seam to cuff) 25.75
rear length (excluding collar) 28.75