The set bonus on the body (NQ, HQ and R/Ex versions):

Heka's kalasiris
[Body] All Races
DEF: 51 MND+17 "Cure" potency +15%
"Cure" spellcasting time -15%
Adds "Refresh" effect
Sphere: Enhances "Fast Cast" effect
Set: Adds improved "Refresh" effect

Does not match the paired head armor description:

Nefer khat
[head] All Races
DEF:30 MP+20 Magic Accuracy +5
"Magic Atk. Bonus"+5 Enmity-4
Set: Adds "Refresh" effect