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From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Dragon Handwraps

ITEM 20
AGILEAPEXFINESSEINVESTEDMAGICALNONLETHALUNARMED
Price 80000 gp
Usage worn gloves
Bulk —
Category unarmed
Group brawling
Damage 1d4 bludgeoning

These silken handwraps feature intricate embroidery of a serpentine red dragon adorned with golden thread. The handwraps function as +3 major striking greater flaming handwraps of mighty blows. You also gain a +4 item bonus to Athletics checks made to Grapple or Shove. When you invest the handwraps, you either increase your Strength modifier by 1 or increase it to +4, whichever would give you a higher value.

Activate (manipulate)
Frequency once per day
Effect You slap the bottom of your palms with hands splayed outward, casting a 7th-rank Breathe Fire spell (DC 41 basic Reflex save).
Activate (concentrate)
Frequency once per hour
Trigger You succeed or critically succeed with a Grapple
Effect You gain a +2 status bonus to your Athletics DC against any checks made to Escape your grapple until the end of your next turn.
Pathfinder Treasure Vault (Remastered)ORC