The 232 Airound from Zamberlan is definitely one of a kind and delivers 360 degree breathabilty around the whole of the foot as it is built using Advanced Goretex Surround Technology. Gore patented spacers strategically placed in the midsole allows air to flow freely, circulating at the bottom of the foot. The internal climate of the boot means your feet breathe so much better, and still you have full waterproof protection as well. The upper of this boot is a combination of mesh and PU with a rubber toe rand for protection when amongst rocks and boulders, and it has a stiffened heel too. This boot is lightweight in design and gives it's best performance when used on lower level hikes and absolutely perfect to wear in warmer weather.