Icebreaker Size Chart Comfortable, technical and ideal for any fast-paced pursuit in warm weather, the Meld Zone Hipkini uses body-mapped merino-blend fabrics to keep you cool, dry and comfortable when you're moving fast. These active, slim-fit underwear feature Icebreaker's super-soft jersey Corespun fabric, which uses nylon threads wrapped in merino wool for added durability that retains incredible next-to-skin softness, as well as natural TENCEL(R) and a touch of LYCRA(R) for stretch and comfort. In key areas, the Meld Zone features panels of eyelet merino mesh, to amplify ventilation and manage moisture when you're on the move in hot conditions. Features: - Cool-Lite(TM) fabric for faster wicking - Corespun fabric for enhanced durability - LYCRA(R) content for stretch and mobility - Strategically placed merino eyelet for ventilation - Forward set side seams for comfort - Flatlock seams prevent chafing - Icebreaker heat transfer logo - Fit: Slim - Fabric: Body: 50% Merino Wool / 33% TENCEL(R) / 12% Nylon / 5% LYCRA(R) Eyelet: 51% Merino Wool / 34% TENCEL(R) / 15% Nylon - Weight: Medium = 50 g / 1.76 oz - Alternate images may show different colorways, yet accurately display product features