Shop Premium Outlets has the Adidas Men's Structured Flex Hat (4 color options remaining; varied sizes) for $15 - 50% off with coupon code ADIDAS50 = $7.50 with free shipping. Other popular styles on w/ 50% coupon include: (full list)

• adidas Ultimate Hat (Green) for $8
• adidas Flat Flex Hat (Collegiate Orange) for $6.75
• adidas Mesh Flat Flex Hat (White / Dark Green) for $6.75
• adidas Structured Snapback Hat (Green) for $7
• adidas Blue Version Archive Cap for $7.50
• adidas Washed Relaxed Hat (White, Child Size) for $7.50