The Vital Conduit Boots are a pair of rare Boots that grants the wearer temporary Hit Points when they cast a Spell that requires Concentration.
Tenser's notes on arcane displacement were not only read by wizards - other avid readers included entreprising smiths eager to break into the magic items market
Properties
Boots 
Required Proficiency: 
Medium Armour
Rarity: Rare
Weight: 2 kg / 4 lb
Price: 240 gp
Special
The wearer of this item gains:
- Grants the wearer 8 temporary Hit Points when they cast a Spell that requires
Concentration. - Athletics +1
Where to find
Act 2: Sold by A'jak'nir Jeera in Crèche Y'llek.