Designed for comfort in high seat-back kayaks, the Ronny from Astral features a Thin-Vent back for breathability and tons of storage with a variety of easy access pockets. Quick access Knife Tab is ideal for fisherman and reflective trim will keep you safe in low light conditions while a mesh liner provides next to skin comfort for long days out on the water. Thin Vent Back, PE foam panels, Reflective trim, Outer Fabric: 200x400 -denier ripstop nylon, Lining: 200-denier nylon, Entry: Front zip, Lash Tabs: 1 front, Adjustment System: 2 side, 2 shoulder, 2 waist, Sizing: SM/MED - 31-37 in. (chest) MED/LG - 38-44 in. (chest) LG/XL - 45-51 in. (chest), Model Year: 2018, Product ID: 425885, Also Known As: Life jackets are also commonly referred to as Life Vests and PFDs (Personal Flotation Device)., Model Number: 16ROSGRN, GTIN: 0818040019469