HJ Hall Mens Indestructible Cushioned Foot Socks size 6-11UK Airforce HJ7 Composition 78% Polyamide, 22% Wool. These are the original classic outdoor work socks developed and invented by HJ Hall and now the market leader. 12 month Guarantee on these socks from HJ Hall. Whether it is taking a steady stroll, relaxing in the garden or a busy day in the office you can be sure that these socks will not only look stylish but will stay up in comfort from dawn till dusk. Many have sought to imitate HJ Hall socks.