Tredair
Tredair is a brand of British-made footwear made by the White & Co. shoe company in Northamptonshire. The company, established in 1880, originally made sports footwear such as cricketing shoes, until it was commisioned (along with other manufacturers) to produce Dr. Martens boots. At that time, the air-cushioned sole used felt to provide cushion, but when the company developed a foam filling, it branched off and produced its own boots and shoes branded as Tredair.
The company continues as a smaller scale cooperative to make a range of shoes and boots in the UK, with some commercial success among American subcultures. Since Dr. Martens moved their production to China in 2003, British manufacturers like Tredair,Solovair and Grinders have become more sought after.