Xcel Men's SLX 2mm X-Zip Springsuit, Black, Medium Short Easy on and off X-Zip front zipper with inner crossover neck entry for extra wide entry Large, seamless one piece upper sleeve design for maximum flexibility UltraStretch neoprene sleeves and underarms Front and back chest panels with inner ThermoCarbon lining and outer wind-resistant Texture Skin Glued and blind stitched seams