The 2015 MTI Helios 2.0 PDF has received a complete redesign. Changes include a longer stole shape with comfort V-Yoke, 3D Mesh lining, and padded neoprene neck. The Helios 2.0 has a new and improved fit as well as a new women's color added. Features like the single whistle, reflective trimming, and indicator window will help you feel safe on the water. This life jacket also includes a zippered front pocket and back DCAS for Strobe light or net. Designed for persons 16 years and older, weighing more than 80 lbs. with a chest size of 30-52 in.