The Gecko fleece from Jack Wolfskin is one to not leave the house without. A simple, lightweight fleece pullover, this practical basic item has been an ongoing best selling for the brand for many years. It is made of 100-weight microfleece and is incredibly versatile, meaning you can wear it as a mid layer in your layering system, as well as perfectly well on its own. The Gecko is a practical, basic piece suitable for a wide range of activities, grab yours while stocks last.