Sweat-resistant lip balm sunscreen with 5-Star UVA protection Protect your pout with the Mountain SPF30 Sun Stick. Not only it rated 5-Star in its UVAUVB ray protection, but it sweat resistant, dermatologically tested and completely preservative free Packable into your jacket or trouser pocket and easy to apply, the Mountain SPF30 Sun Stick especially convenient to use when youre halfway up or down a mountain.Youre more exposed to UV rays at high altitudes, with an additional risk of damage from the sun reflecting off snow and water. The Sun Sticks broad spectrum UV filters protect the skin from both UVA and UVB rays.Keep your lips protected with Lifesystems Mountain SPF30 Sun Stick Sunscreen Lip Balm.