RAC Black Wedge. TaylorMade's RAC wedges feature an individually contoured sole that increases versatility and accommodates a variety of different swing types. RAC stands for Relative Amplitude Coefficient technology. The unique, precision-milled Feel Pockets are strategically positioned toward the toe and heel to channel energy through specific areas of the clubhead, delivering a soft-yet-solid feel at impact. The RAC Black wedge owes its dark, appealing finish to a three-step oxidation process that turns the club head black. The dark colour on the RAC Black's finish diffuses light to reduce glare at address.