SKINS RY400 Recovery Compression Top promotes the healing process long after you've gotten off your bicycle.  Applying Skin's 400fit design with Dynamic Gradient Compression fabric, the RY400 top helps reduce lactate buildup and muscle swelling while promoting quicker recovery.  Skin's “400” name derives from scientific research study identifing 400 different points of measurement to develop a sizing system based on Body Mass Function (BMF).  The result is a more accurate fit by taking into account the body shape or ‘morphology’ of the target end user. This data enabled SKINS to engineer a product that delivers correct amounts of pressure on the body for maximum recovery.  You find more and more cycling teams like HTC-Columbia donning the Skins collection to recover quickly and efficiently. SKINS suggests that you wear the top for at least 3 hours for the best results. Since the RY400 top offers maximum comfort, you can even wear it while you sleep to speed up your body's natural recovery process.