Cold-Proof Face Mask - Polyester Outdoor Balaclava, Unisex One Size

What it is made of

Polyester knitted with a brushed inner face. The brushing raises a soft layer against the skin that holds warm air, while the smooth outer face sheds wind. Polyester is used rather than wool because it stays warm when damp from breath and dries between wears, which wool at this weight does not.

How it fits

One size, stretching over the head and down the neck, with an eye opening and a breathable panel across the mouth. Unisex. It sits under a helmet without bunching at the temples, which is the fit test a balaclava either passes or fails.

Where it earns its place

• One continuous piece, so there is no gap at the collar
• Brushed inner face holds warmth; the smooth outer face sheds wind
• Dries between wears where wool of the same weight stays damp
• Sits under a helmet without bunching at the temples