Yarn: Knitpicks sock yarn solid. No idea on the colour - GREEN. Very soft stuff this yarn, probably much better for baby clothes than socks!
Pattern: My own, a top-down raglan worked roughly from this guide then with a zig-zag patterned stitch I made up on the plane as a way of stopping me go mad from the simple st st. I'm pretty pleased with this stitch, it gives a nice drape as well as texture.
Needles: Addi 80cm 2.75mm circs, using magic loop.