The Julbo Sherpa is the choice of budget minded explorers. Lets face it, expedition costs are not cheap. Add multiple air fares on top of mountains of expensive gear and food and theres not much left over for incidentals. The Sherpa offers full bright light protection, reducing visible light by 88 with Julbos Spectron X3 lens. Moldable temples, removable side shields, and polycarbonate lens all come included. Huge value at under forty bucks Good lookin shades, too. Excellent choice for skiers, snowboarders and mountaineers alike.