The theory behind half-and-half gloves is that the braking fingers retain full-length grip and protection, while the ring and pinky, tucked away on the bar, get the cooling of a mitt.
This pair are still on the substantial side for really hot days, with a neoprene cuff making for a bit of a sweaty mess. The thin leather palm has plenty of minimal, yet high-stick grip, which makes for a good feel. Rubbery phalanges and metacarpals shrug off brambles as well as looking funky.