These are popular as "rapier" gloves but they work well as light protection and grip assistance for longswords, knife trainers, and other weapons.
Lynx Tournament Gloves (Short Cuff)
The fingers are split 2x2, and the thumb can be tied on to different pairs of grommets to allow for further size adjustment. The wrist is really excellent once the cuff has been worked in for about 20 minutes. The wrist plates are sewn so that they can slide and adjust, but cannot de-overlap.