The ISA Shirt combines Swiss craftsmanship with environmental responsibility. Knitted in Switzerland to rigorous ecological standards, then sewn in Portugal using 100% solar energy, this piece reflects a commitment to sustainable production. Designed for comfort and performance, the fine-rib knit fabric naturally regulates temperature while remaining breathable—perfect for layering or wearing alone. The classic round neckline and seamless construction eliminate irritation, creating a smooth silhouette that moves with you. A versatile essential that prioritizes both quality and conscience.

100% Wool