Mohair take dye better and is more durable then sheep wool Its ment to be warmer as well, but I can't verifiy that. verse Cashmere that's another question
Wool is generally warmer than cotton, due to the air spaces in wool.
Mohair, a fibre, comes from Angora goats.
Mohair
Mohair is the fleece of the Angora goat. This is a goat that is bred for the use of the hair, it is not as thick as wool therefore it is called Mohair.
del Rio
Better is a judgement and you are the judge. Lambswool comes from fleece grown by lambs. Wool may come from any age animal.
Mohair or cashmere
mohair or fibre
Silk is well known for being warmer than wool. Nylon and cotton are poorer insulators. (As well, there are other types of "wool" which are known for being much warmer than sheep's wool...)
John P. Hunter has written: 'The economics of wool and mohair production and marketing in Lesotho' -- subject(s): Marketing, Mohair, Mohair industry, Wool, Wool industry 'Red Thunder' 'Rainfall and temperature probability statistics for Lesotho agriculture' -- subject(s): Lesotho, Rainfall probabilities, Temperature normals
It will depend on the kind of wool used, and the method of felting and or boiling used on the wool to make the fabric. Ski parkas are built for active wear and can be warmer than wool jackets if they have special high tech fibers and construction.