The prAna Vertigo Sleeveless T-Shirt - Men's The prAna Vertigo Sleeveless T-Shirt - Men's is extremely lightweight and combines comfort with recycled fabric. Fall into the cool comfort of the Vertigo Sleeveless, a lightweight performance knit shirt designed for an active lifestyle. It is made from wrinkle free polyester that transports moisture quickly, the sleeveless tee has detailed seams, contrast grey trim and a front logo print. Go sleeveless for a full range of motion during your next climb or yoga session. It features a soft recycled polyester fabric that is breathable, lightweight, moisture wicking and quick drying. It's perfect for your active pursuits. The prAna Vertigo Sleeveless T-Shirt - Men's is the ultimate sports T-shirt that gives you both comfort and an ease to work that sweat out.