Swiftfoot Boots is a uncommon Artifact — Equipment card from Mystery Booster: Commander Edition (MBC), collector number 77. Current market price: $2.00, TCGplayer market prices via Scryfall.
Equipped creature has hexproof and haste. (It can't be the target of spells or abilities your opponents control. It can attack and {T} no matter when it came under your control.) Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)