Icebreaker Size Chart A cold-weather women's merino wool top, the Women's Tech Long Sleeve Half Zip is a midweight baselayer with a zip-neck design for skiing, snowshoeing and other winter pursuits. Its 100% merino construction is naturally quick-drying and odor resistant. Flatlock seams with offset shoulders and side provide a smooth, comfortable fit, and a drop back hem adds extra coverage. Features: - Updated design - Zip neck collar for temperature regulation - Offset shoulder seams prevent pack rub - Flatlock seams prevent chafing - Forward side seams for comfort - Underarm gusset for comfort and mobility - Drop tail hem for added coverage - Center back length: 69cm / 27 1/4", Size M - Icebreaker tonal embroidered logo - Medium = 290 g / 10.2 oz - 100% Merino Wool - Model images are shown in an alternate color