Avery Sporting Dog Standard Dog Parka, Max-5, Extra Large - 00931 The Avery Standard Dog Parka is the world's most popular camo neoprene dog vest! Constructed from soft yet durable 3mm neoprene, this vest-style protector offers insulation needed to dry quickly as well as added buoyancy on long retrieves. The uniquely tapered cut offers a comfortable fit and the large zipper and zipper protector are held firmly in place with a long strip of Velcro.