The cotton-duck T4 was designed especially with hikers, canoeists, and kayakers in minds, and do they love `em! It has also made a hit with gardeners and with others who need the ample sun and rain protection provided by the down-sloping brim. See also the T2 and LT6 if you`re in the latter category. The T4 has the same well-ventilated high crown as the T5, but with a larger brim.