Hat Sizing
One Size Medium Large
Inches 21.7 - 24 21.7 - 22.8 23.2 - 24.4
Centimetres 55 - 61 55 - 58 59 - 62

How to Measure

Measure around the circumference of your head.

How to Measure

Measure around the circumference of your head.

Standard delivery to UK addresses is free over £29.

Next Day deliveries will be shipped same day if you place your order before 2pm Monday - Friday.

If you are not happy or have changed your mind you can return your unused product within 123 days of placing the order for a refund. Simply return it to us, free of charge, with all the original packaging.


The Airhead is designed to add warmth without the bulk, fitting neatly under cycling and climbing helmets, or for running and hiking in cooler conditions.

  • Grid fleece backer traps lots of warm air
  • Low bulk fits neatly under helmets
  • Fast-wicking and drying material

When you’re sweating away in the cold, you rarely need much insulation for that brain cave of yours. But we all know how big a difference a little extra warmth can make to our comfort. The Airhead uses highly breathable grid fleece to provide high levels of warmth without the bulk.

Grid fleece traps lots of pockets of insulating warm air between the squares of fleece whilst also allowing you to quickly dump excess heat. This fleece fabric is fast-wicking and fast-drying, keeping you comfortable and dry when you’re working hard – whether on a rope, two wheels or your own two feet.

Because grid fleece provides lots of warmth without the bulk, the Airhead fits easily under climbing and cycling helmets. We’ve also added a double layer headband to keep your ears cosy when the cold and wind start to bite – no one likes cold ears!

Designers Notes
The Airhead uses the same high-tech grid fleece that we've used for the Morphosis Jacket and Smock!


Key Features

  • Grid fleece traps lots of warm air for its weight and bulk
  • Low profile style fits neatly under helmets
  • Fast-wicking and fast-drying material for high intensity activities
  • Double-layer headband to keep your ears warm
  • Grid structure dumps excess heat better than standard fleece
  • 3 Year Alpine Bond

Vital stats


Fabric: 100% polyester (brushed grid backer with smooth outer face)


Large: 22g

Origin: China

Sustainability and Product Care

Product Care Information

Wash your beanie on a gentle cycle at 30°C and line dry or tumble dry on a low heat. Store away from dog-height to avoid certain chewing.

We have dedicated Repair Stations in our stores and we're fully equipped to breathe new life into your old kit. This includes spare parts, patches, new zips and wash and reproofing of your down and waterproofs. Pop into any store or contact us online for more info.

Alpine Bond
If one of our products does not meet your expectations upon delivery, or if during its lifetime does not live up to the demands placed upon it, please return it to us for repair, replacement or refund. If the problem is our fault then we will do this to your satisfaction. If it’s your fault then we will help out the best we can. Find out more about our Alpine Bond here.