Ultra-light and flexible, the 2/2mm Highline Ltd. Monochrome Chest Zip Short Sleeve Spring Suit for men features StretchFlight x3 neoprene for freedom to move and lasting comfort. GBS seams and StretchFlight Taped internal seals keep things durable and flush-free while the flexible 2/2mm construction offers up protection from sun and wind so you can stay out even longer.