More than your standard PolyPro, Heatflex is an insulating baselayer, featuring a technical coating called Polygiene. Polygiene is a silver salt solution which inhibits the build up of bacteria making Heatflex odour resistant, warm and super soft on skin.  
- 180g/sqm polypro
- Polygiene Stays Fresh technology
- Odour Resistant
- Active comfort
- Breathable
- Excellent moisture wicking
- Lightweight
- Quick drying
- Certified Carbon Neutral Product
- Size 2 available in black only