The Petzl Thermonett Beanie Muff is a lightweight, low-profile beanie designed for warmth and comfort under a helmet. Made with high-performance PrimaLoft® fabric, it provides excellent insulation, moisture management, and quick-drying performance for cold and wet outdoor conditions.
Features
- High-performance PrimaLoft® fabric for warmth and weather protection
- Lightweight, low-profile fit designed for use under a helmet
- Seamless construction for enhanced comfort during wear
- Breathable material helps wick away sweat and moisture
- Quick-drying fabric ideal for active outdoor use
- Retains insulating properties even in damp conditions
- Reversible fitted design for versatile wear
- Machine washable for easy care and maintenance
- Made with 43% recycled polyester for a more eco-friendly design
Specifications:
Size: One Size
Weight: 50 g
Material: PrimaLoft® fabric (53% polyester, 43% recycled polyester, 4% elastane)

















