XTM 230gsm Merino L/S Crew Mens Black Long Sleeve T-Shirt 100% fine Australian Merino Raglan Sleeve The XTM Merino Long Sleeve crew neck top is made from 100% fine Australian Merino Wool and at 230gm is the perfect thermal base layer. Merino Wool acts as a thermo-regulator, keeping you cool in warmer climates and warm in colder climates. It's odour repellent, extremely breathable, silky smooth and non-itch. FEATURES 100% fine Australian merino 230g/m2, 20.5 microns Raglan sleeve for extra comfort Interlock knit Thumb gussets UPF 50 Non itch