The new Underworks Microfiber compression shirts feel like skin tight silk Our fabric offers multi-directional stretching that allows the shirt conform to every curve of your body and move with you. MENS PERFORMANCE COMPRESSION TANK - Snug feel. Provides elegant compression to slim you down and shape your whole upper body.SHAPES YOUR CHEST, TUMMY, AND SIDES - INVISIBLE UNDER CLOTHING - smooth feel and breathability from silky microfiber nylon that moves with you in all directions.QUICKER RECOVERY FROM EACH WORKOUT - Wearing the Performance Compression Tank will help in quicker recovery of your muscles after your workout or ball game.Breathable and cool. Perfect to use it all day every day. Micro-Fiber soft touch, is a man made synthetic fiber made by Dupont�.These yarns are especially engineered ultra fine filament yarns in which each filament has a controlled thickness that is 15 times finer than human hair.The result is unmatched comfort, fit, and durability. Our microfiber also has an SPF 50 rating for your protection.They are available for you in a crew neck t-shirt in long and short sleeves, v-neck t-shirt in short sleeves and in a tank top.MADE IN USA - Underworks is a registered trademark and is made in the USA. Beware of fakes being represented by other foreign sellers. Purchase originals only from Underworks.