I would definitely recommend this shoe for the summer months as the very light and thin mesh around the toes is so breathable you can feel a slight breeze even with thicker socks. This mesh is an important comfort feature. It is elastic and has no plastic lining. Your toes and nails will be very healthy and happy in this shoe. It accommodates the widest feet ever. It's also very true to size. I have 46.5/11.5 UK in Salomon, Saucony, Inov8, Brooks and these too. So if you wear one of these brands and the size is right, you will be the same size in these + Mizuno running shoes. If you want to learn more about Cursors, please read my full review here. http://evolutionexpress.blogspot.fr/2013/10/mizuno-wave-cursoris.html