Norwegian-based Fjallraven knows how to do cold—which is why we like the Abisko Varm Trekking Tight for hiking and running in chilly weather. The double-knitted stretch fabric features a brushed polyester lining on the inside for some light insulation and wind-blocking panels on the outside to blunt the bite of the wind. Cordura patches over the knees add durability and abrasion-resistance, and the reflective trim makes us more visible in low light. Insulating, water-resistant, wind-resistant, and abrasion-resistant, these tights let us take on almost any trail and any weather that fall and winter throw at us.