Datt Velfour is a 4 layered bandaging system used for the treatment of venous leg ulcers and lymphedema - Velfour provides high sustained compression therapy (HSCT) with 40mm Hg pressure at the ankle which reduces to 17mm Hg at the knee - Velfour maintains effective compression up to a week after application and has sufficient absorption capacity to manage exudates absorption for a week as well - There are 4 kits available in 2 sizes. Kit A and A Plus are for those having an ankle circumference between 18 and 25 cm. Kit B and B Plus are for those having an ankle circumference of over 25 cm - Each kit has 5 components - a gauze/ dressing, orthopaedic wool, crepe bandage, compression bandage and a cohesive compression bandage. orthopaedic wool as a layer that aids in the protection of bony structures - The Plus kits have a Silvel Ultra antimicrobial dressing and the regular kits have a smart gauze. Silvel Ultra is a nanocrystalline silver treated antimicrobial wound contact layer and therefore antimicrobial solution need not be used prior to the application of the Plus kits