Ibex added this full zip Indie to make just the right all season performance Merino jersey. Mid-weight with an athletic cut, flatlock seams and thumbholes for that comforting coverage around the wrists, this is a layer that you'll never store for any season. Performance lightweight Merino full-zip jersey. Front zipper with locking zipper pull: XS=23 1/2'', S=24'', M=24 1/2'', L=25'', XL=25''. Contrast on inside collar, contrast stitching at waist; flatlock construction. Zipper garage at neck. On seam thumbholes. Machine washable. Finely tuned 18.5 micron New Zealand Merino at 195g/m2. Ibex designed this fabric from the need of a weight in-between their Woolies at 150g/m2 and the Zepher at 230g/m2. The weight of the fabric resembles that of a high quality t-shirt. It works well worn next to skin as a baselayer or on it's own. 100% Merino Wool.