A soft and stretchy long sleeve T-shirt for everyday comfort and layering, the Siren Long Sleeve Sweetheart features a slim fit and our corespun merino wool blend fabric.Features:- Merino Corespun Merino blend regulates body temperature in all weather conditions.Specifications:- Fabric main: 83% Merino wool, 12% Nylon, 5% Elastane- Weight: 123 g / 4.33 oz- Warmth system: 150 UltralightCare:- Machine wash warm. - Wash with like colors. - Do not use softeners. - Fasten all closures to wash and dry. - Do not bleach. - Do not tumble dry. - Line dry in shade. - Warm iron. - Do not iron print, trims and accessories. - Do not dry clean.