Subtle Mage Gloves
Wondrous Item,
Rare
(requires attunement; cost 5000 gp)
Crafting Components
Gloves that have visited at least 6 different planes of existence
While wearing these gloves, you gain a +1 bonus to AC. In addition, when you cast a spell you can use your reaction to expend a number of charges equal to the spell’s level, casting it without any seen or vocalized components. The gloves have 4 charges and regain 1d3 charges each dawn.
Source