Military 1st have sent over details of the Magnum Jowisz top they are stocking:
Made from a unique blend of high performance fabrics, thermoactive long-sleeved top by Magnum helps to keep a thin layer of warm air next to the body & wicks moisture away at the same time. Comfortable, seamless & highly breathable, Magnum Jowisz top comes with zonal compression for extra support, has low moisture absorbency & is quick drying. Ideal base layer for this time of the year. Buy now at http://www.military1st.co.uk/brands-magnum/