Adidas TechFit Preparation Long Sleeve Compression Top Ventilated CLIMACOOL - keeps you dry and comfortable. TECHFIT - focuses your muscles' energy to generate maximum explosive power, acceleration and long-term endurance. Crewneck - Sleeves extend over hands; thumb holes on cuffs. Flatlock - seams reduce chafing and skin irritation. Special pattern - design for enhanced fit during training; Graphic execution on front and back.