Do you want to compare a lightweight trekking T-shirt that breathes and does not add weight? The Fjällräven Abisko Wool SS M in blue is a short T-shirt made of merino wool and recycled polyester that combines the thermoactivity of wool with the durability of synthetic fibers. The loose fit promotes air circulation and the T-shirt works as a first layer in colder weather or on its own on warmer days. Natural odor resistance will facilitate multi-day hikes without the need for frequent washing. Technically speaking, wool provides thermal regulation, and polyester contributes to quick drying and moisture wicking; The construction is designed for movement and durability. The product is manufactured PFAS-free and traceable wool is used, which can influence equipment selection decisions. The blue shade is a universal choice that fits both a classic outdoor palette and an urban outfit.