The Overlords can be weird with sizing, IME. The old models were very tight and form fitting, enough that I couldn't fit a small correctly (I tried over a period of a month to get them to stretch out properly, never could), while the mediums were too large. Very disappointing, as I loved my Firemarks in size small (the Ironsights also fit great). The new Overlords that aren't super tight are actually too loose for me, as I tried the new touch compatible Overlords and there was a fair bit of excess materials. For now, I'll just stick with my Firemarks for shooting; they're not true FR, as the goat leather was not FR treated, but the fabric areas are made out of Nomex, so at least they won't shrink wrap on me.