- As a risk-taker who loves country style, you can't miss out on these Cowgirl Hat Earrings! Made from Rhodium over steel, these earrings boast a stylish cowboy boot design. And with hypoallergenic materials and a sturdy stainless steel and lever back closure, they'll stay firmly in place. Get ready for an adventure with these waterproof earrings! Surgical steel posts and butterfly backs included.