Nike Tech Pack Running Jacket Mens. Nike Tech Pack Running Jacket MensEngineered with a versatile 2-in-1 design the Nike Tech Pack Running Jacket features a lightweight water repellent construction with a hooded external jacket that unzips to reveals a lightweight gilet beneath. This running jacket offers all of the usual refinements including convenient zip pockets to store the essentials as well as reflecitve details to keep you seen.> Mens running jacket> 2in1 design> Water repellent fabric> Inner gilet has centre back pocket to store jacket> Multiple stash pockets> Scuba hood that offers extra coverage> Elasticated trim for snug fit> Reflective elements> 100% Polyester> Machine washable