The Icebreaker 260 Tec thermal legging is a midweight layer with 260gm of 100% merino wool making this an ideal versatile warmer mid layer top to wear on its own or over thermals in high resorts, early skiing trips or USA and Canadian ski resorts where an extra warm layer is essential.From the first chill in Autumn through the last day of ski season, the Icebreaker 260 Tec legging is very warm, non-scratchy next to the skin and has flatlock seams to prevent chafing.The midweight 260gm, 100% merino wool fabric insulates, breathes and resists odours.