Lululemon Ventilated Hiking Short Sleeve Shirt LM3DN5S DKOX Dark Oxide Brown medium. Brand new. New with tags. Authentic. This Lululemon Ventilated Hiking Short Sleeve Shirt in Dark Oxide Brown is perfect for any active occasion. With a classic fit and crew neckline, this shirt features a pullover closure and is made with a blended fabric of recycled polyester, lyocell, and elastane. The breathable design makes it ideal for gym and training, Pilates, hiking, running, and even CrossFit. The shirt is machine washable and easy to care for. It comes from the Lululemon Hiking product line and includes features like short sleeves and solid pattern. Get yours today!