Tilley Thermashield T3Tilley Thermashield T3 Designed using a lightweight Italian thin down insulation that retains heat while lightweight and packable to fit easily in any bag without losing shape or performance ability. Block rain, wind and snow with seam taped, water repellent shell, while elastic sweatband and bungee windcord provide a secure fit. To top it off, weve been sure to include our signature hidden pocket to keep your keys and cards on hand, alongside UPF50+