1. Leather is the best (good) material for shoes and boots.
2. The cheapest (cheap) pants are made of polyester.
3. The hast made of wool are the warmest (warm).
4. The silk socks are the most expensive (expensive) ones.
5. Linen and silk are two of the lightest (light) materials for clothes.
6. In my opinion, clothes made of cotton are the most comfortable (comfortable).