This jacket and sweater pattern combo is a collection of easy knits with a raglan sleeve and uses ribbing to create the detail in the garment.
They are knitted in King Cole Chunky Tweed, which is a wool acrylic mix with a cheeky wee fleck running through it. With a pattern this simple, I think you can go hard with the colour. I think King Cole Corona Chunky would be a great substitute, it is 100% acrylic, has a crimped texture and some beautiful variegated colourways (check out Celestial as a treat for your eyeballs).
You will also need 5.5mm and 6mm needles to knit these garments.