Other branded & retailer thermal/walking socks purchased across the UK and tested in 2009 / 2010 / 2011 to the same standard as Heat Holders according to BS 4745 two plate method for thermal tog rating.
Other branded & retailer thermal/walking socks purchased across the UK and tested in 2009 / 2010 / 2011 to the same standard as Heat Holders according to BS 4745 two plate method for thermal tog rating.