well I am glad to say that the price of my 4 jumpers combined comes to $60 so I am glad that I haven't found out the hard way with a good one.

I don't know if anyone has found this but I used to have mostly synthetic/wool blended jumpers but found that after I sweated a little the stench was impossible to get rid of. The 100% wool ones don't even seem to smell after a couple of wears!

Thanks for your advice