NWT Lululemon Water-Repellent Hiking Short Sleeve Shirt in Black. Stay cool and dry as you take on the trails. This water-repellent hiking shirt has large mesh underarm panels so you don't overheat as you climb. Water-repellent fabric i abrasion-resistant. Classic Fit. Designed with room in the chest and at the waist. Mesh fabric panels under the arms help you let off steam. Chest pockets. Feel free to ask questions! Bundle to save :)