The Apex GPS tracker inserts into this 1/4 zip drill top without the need for a performance vest.

Slim-fit premium quick-dry fabric with lightweight reverse zip.

Perfect for before, during and after training. The discreet bonded pocket sits comfortably on the spine inside the garment. Concealed thumb holes for extra protection against the elements. As worn by Alex Oxlade Chamberlain.

The main body fabric is quick-dry 74% polyester and 26% elastane. The mesh back panel is 84% polyester and 16% elastane.