The cloth type are way cooler, i roast every time i wear my leather one. I wear it, as it offers good protection.
The cloth one i wore at work had leather sleeves. It was suitable.
Well hopefully, a lot of the work will get done this winter, and I don't have a problem being too warm out there from Oct - June. I never used a cloth one but read reviews where they aren't as suitable for overhead work as the hot blobs can sit and burn through.