Urban adventure or outdoor sport–wherever your next trip takes you the JWP THERMIC ONE JACKET is a must-pack item. This super lightweight insulated jacket will keep you warm and, because it packs down small, it is always ready for action when you need it.The jacket is filled with our new MICROGUARD SUPERLOFT. The synthetic fibre insulation is insensitive to moisture and delivers very good warmth-to-weight performance–the perfect alternative to down. The JWP THERMIC ONE works really well as a layering piece under a jacket or over a T-shirt. In wet weather you can team it with your hardshell.