Knit the Aspen Tam by Grace Akhrem with 2 balls of Tilli Tomas Aspen (100% Australian Merino; 130yds/50g).
Suggested needles are US 7 (4.5mm) 16" Circular Needles and US 7 (4.5mm) Double Point Needles. You will also need a Cable Needle, a Stitch Marker, a Tapestry Needle and a Row Counter.
