Lululemon Clear and Present Long Sleeve No size tag. Pit to pit is 23”. I am a size 8 and it fits great. Could fit M because it’s oversized fit. Clear your mind and focus on the present. This lightweight long sleeve has a breathable stripe pattern integrated into the fabric for slightly sheer, lightweight coverage. Fabric is soft, naturally breathable, and quick-drying. Soft naturally breathable quick-drying features Designed for: On the Move Relaxed fit, hip length: Layers easily and gives you room to breathe