NWT Lululemon Brunswick Muscle Tank in Grey Sage Size 4. This soft pima cotton muscle tank gives you breathable coverage thats perfect for exploring a new city, cooling down after class, or resting at home. A loose fit with a little extra room. Long length keeps bum and hips covered. Added Lycra fibre for shape retention. Loose fit is great for layering. Long length is great for layering and stays put. Brand new, never worn. In excellent condition.