Nike AeroLoft technology utilises small spots of bonding in lightweight down insulation to increase the loft of the insulation without decreasing your ability to move Nike HyperAdapt technology combines a vent along the back of the shoulders with stretchy fabric for extra mobility through your swing Lightweight fleece on the sleeves and lower back creates a low-profile fit you can swing in freely The fleece is stretchy and plush for extra mobility and comfort Standard fit for a relaxed easy feel Zippered pockets 2-way zipper