The materials are Wool / Poly / Viscose , so it has a real nice feel about it. Notice in the pic the material is not plain but has a mixture of colours, which give it a retro look.
Sizing, we would advise stick with size initially, but us guys normally need to go up on trouser size. The reason being that if you wear Jeans a lot the sizing is deliberately altered for our modesty !
Trousers: 30 – 40 Reg – Inside leg 32inch with Turn up of 2 inches