This is pretty plain, but super duper wearable and actually it's one of my favourite kind of knits. It bounces you along and before you know it you've done half of it. I love the colours they've chosen, the mustard shows off the stitch pattern really well. The split at the side is super cute and I'm a big fan.
This has been knitted in King Cole Subtle Drifter DK, one of those yarns that can just do anything, but you can use any King Cole DK that takes your fancy.
You'll need 3.75mm, 4mm and 4.5mm needles, and buttons for both the sweater and the cardigan (see back of pattern for amounts).