Footie Pajamas, Merino Wool, Blue Never Used 0-3 Month Size Paid $49.99 + Shipping/Tax from Woolino Directly No flaws, pet free and smoke free home Made of 100% finest-quality merino wool, Woolino pajamas are the perfect addition to your Woolino baby sleep bag or sack. Merino wool provides powerful natural properties that make it ideal for year-round wear, regardless of the weather.