The Hatclub offers a wide variety of hats. Shoppers can join the club to receive discounts on its offerings, including baseball hats, fedoras and golf caps. Spend $5 to buy in when purchasing a full-priced hat then enjoy 20 percent savings on every hat thereafter. The discount applies to the complete inventory of chapeaus, including popular selections from New Era, Zephyr, Hurley and the "authentic on-field" collection, which is exactly what the A's and Giants wear.