70% Polyester, 30% CottonButton down suit vests, V-neck, slim fit style, Adjustable back belt, make you more fashionable and attractiveThis button down front suit vest suit for formal or informal occasion such as Wedding, Banquet, Date, Working, Party or Daily wear, for All seasons and you can match with your shirt, jacket, suit or Tuxedo which makes you handsome and gentlemenIt has two real pockets for your watch, cards or handkerchief etc. Vest for Suit or Tuxedo/party/prom. Perfect Gift for families, friends or boyfriendSuggest: hand wash, do not bleach, Wash Separately, dry flatNotes:1. The unit of measurement for the data in the size chart is centimeters. Due to manual measurement, there may be a little difference. Thanks for your kind understanding.2. Since the size of each region is not uniform, we will send you the size that suits you according to the size you ordered.