Because of the crimp, wool fabrics have a greater bulk than other textiles and retain air, which causes the product to retain heat. One I finished last week (yay), and the other I am very much enjoying, even though it is not the kind of book I would normally read. They describe themselves as Colefax and Fowler on acid, which basically means that more is more and if it's not enough, then add a dash of more to it.
The most striking example of this was Nyla Carroll who still holds New Zealand record for the half marathon at 1 hour, 10 minutes and 53 seconds, set in 1996. Some of the shoes are formed over a mould, using a moulding medium, but the Stilettos and Brogues are made from a flat template I have designed, then constructed into a three dimensional shoe shape and the Ballet Slippers are hand stitched to form the shape. These hot tubs all blend into their surroundings, finishing off outdoor spaces and creating areas of relaxation.