Can we deduct uniform costs from paychecks?

Q. We require new employees to buy their top uniform from a uniform company. The uniforms vary depending on the position and have the company’s logo on them. The uniform typically costs between $20 and $45 and is a smock, polo shirt or vest. The employees can deduct that amount from their paychecks or pay for it by personal check or credit card. As the HR manager, I take care of this process for them. Is this procedure legal under Texas law? —D.S.