lanning to buy new sunglasses, outdoor, or sports glasses but not sure what to look for? In this comprehensive guide, you’ll learn how to navigate lenses, filters, and colors, which frame materials are most durable, and why visible light transmission really matters. We’ve also added practical tips on popular models from Oakley, Wiley X, and ESS available at Rigad.com. With this overview, you’ll easily find glasses that not only look great but, most importantly, reliably protect your eyes.

Navigation in nature from A to Z. Practical instructions on using GPS, mobile mapping apps, compasses, and baseplate compasses, along with tips for reading maps and determining cardinal directions from natural signs. Both modern and traditional navigation methods for safe movement in the field.

What can you do if you don’t have a modern water filter on hand? This guide explores a range of improvised water treatment methods, explaining how they work, their advantages and limitations. You’ll learn how to source and pre-treat water in the wild, what to watch out for, and what to pack as a backup for emergencies.