The Ortega TG44NM Atmosphere Green strings for classical guitar are made and manufactured in Italy. The newly developed material of the treble strings consists of 100% plant-based products. During the manufacturing process, CO² emissions are reduced by more than 50%. The Atmosphere Green strings offer a perfect combination of a bright, warm and assertive sound with excellent projection and precise intonation, which with a durable tuning stability provides additional comfort and easy playability.