The Northeast, USA has just completed a week long heat wave with 100 degree temps. When I wear leather straps in this kind of humid heat, the sweat just ruins and stains the strap quickly, and is less comfortable. I suppose that explains why four of my watches are on bracelet and one is on leather . Do I dare put a NATO on my JLC? How do your leather straps tolerate the high heat? Are there other comfortable solutions for this application?