Icebreaker 200 Oasis Short Sleeve Crewe Thermal Top - Men's Black Extra Small. Specifications for Icebreaker Merino 200 Oasis SS Crewe - Men's: Manufacturer: Icebreaker Body Length: Regular Apparel Fit: Slim Gender: Male Application: All Purpose Fabric/Material: 100percent Merino Wool Weight: 6.02 oz Features of Icebreaker Merino 200 Oasis SS Crewe - Men's 100percent Merino wool - Soft lightweight and naturally odour resistant fibre that keeps you warm when it's cold and cool when it's warm Gusseted underarms for mobility and comfort Offset shoulder seams to help reduce friction Flatlock seams to help reduce friction Drop tail hem for added coverage Package Contents: Icebreaker Merino 200 Oasis SS Crewe - Men's Icebreaker IB104509001XS: 200 Oasis Short Sleeve Crewe Thermal Top - Men's Black Extra Small