I purchased this jacket, working in a plainclothes law enforcement position. I was looking for a jacket that I could wear during warm weather that would be adaptable for different styles and that wasn't insulated. This jacket pretty much checks those boxes for me, it has a slight amount of stretch and is unlined. The material is like a thin softshell and the two interior pockets are made of mesh webbing. There are side zips which work well for OWB CCW. I'm 6'0, 230lbs and usually take a size 44-46 jacket, 16.5 34/35 shirt. This jacket in size XL fit me perfectly with room for SBA underneath. Took about 4 weeks to deliver.