Geothermals are classic base layers for New Zealand conditions. They're made from 100% recycled polyester to maximise warmth and moisture management. A brushed fleece backing provides lightweight softness. Flatlock seams and raglan sleeves ensure next-to-skin comfort, making these thermal long johns ideal whenever it's cold out. An essential thermal base layer made from 100% recycled polyester. Quick-drying, warm, soft, and moisture-wicking.