Castelli core tri top tri tops
Castelli have included key features from their top of the line products like the the free aerodynamic pocket design and speed hooks to prevent the top from riding up during the swim and bike ratings out of 5 windproofness 1 out of 5 waterproofness 1 out of 5 insulation 1 out of 5 breathabiliy 1 out of 5 lightweight 1 out of 5