Under Armour UA Feather Radiate Running Shoes Molded Neoprene Upper - Ultra lightweight upper, which allows your foot to move naturally. MPZ - Protective contact pads, positioned at key points to help absorb impact without sacrificing compression support. Perforated Heel and Toe Detail - Provides enhanced breathability. Full-Length Micro G - Super responsive foam cushioning, to support your stride and turns, cushioning your landing and enhancing your take off. Molded 4D Foam - Allowing the footbed to conform to your foot's exact shape, helping to reduce slippage.