OBrien Mens V-Back Orange Life Jacket The OBrien Mens Aviator Life Vest features a double split back panel for a more accommodating fit. This comfortable and light-weight life jacket has a zip closure and two concealed belts for security. Features OBriens BioLite material-BioLite is an eco-friendly material that looks and feels like neoprene but contains no rubber foam or Volatile Organic Compounds. Features ChestShoulder Flex Panels and Smooth Side Panels Tapered waist for Accommodating Feel Ov