Sleeve Wrapping - Sleeve Flex The sleeve wrapping technology consists of passing a load through a film curtain, which is then sealed forming a tight sleeve, which is subsequently shrunk. Our Sleeve Wrapping Lines come in two different types; a Sleeve Flex followed by an Easy Flex , used for wrapping of appliances with large variations in length and width, and a Sleeve Flex followed by Vertical Shrink Columns, where the loads turn during shrinking while the shrink columns are stationary. Capacity of our Sleeve Wrappers: 350+ loads/hour.