Rg-roentgenium-111

Fun facts: Like most synthetic, superheavy elements, it lasts only milliseconds before decaying. First created in 1994 and named after Wilhelm Röntgen, discoverer of X-rays. Great for: Radiologists and fans of the more-obscure elements. Channel the energy of a Roentgenium atomic element hat from Lidnium. Crafted from premium washed cotton with precise Rg symbol embroidery and an adjustable fit, this cap lets you stand out—whether you’re celebrating a milestone or powering through your day. Wearing a Lidnium cap adds a little juice to your day, and Roentgenium takes it to the next level.