Regatta Mens Packaway II Jacket The Regatta Mens Packaway II Jacket is a comfortable, waterproof and breathable jacket made with Isolite 5000. The jacket has two zip pockets and has taped seams. The collar holds a concealed hood and the zip has a windstop. IsoLite 5000 is a very lightweight and waterproof fabric of Regatta. The fabric has a water column of 5000 mm, is very breathable and is windproof.