ALCO is a coastal-inspired brand of water- and tarnish-resistant, hypoallergenic jewelry made to wear everywhere — from the gym to the sea. The Windsor Ring is a clean, classic band built for daily wear. 18K gold-plated marine-grade stainless steel Nickel-free & lead-free Hypoallergenic — kind to sensitive skin Water resistant & tarnish resistant Designed to wear from gym to sea