Nyanen is a simply shaped tee with no shaping within the lace. It is worked in the round from the bottom up to the armholes and then split to work the front and back. The lace pattern forms a pretty wavy edge around the "sleeve" openings.
The sample shown was knit in Quince & Co. Sparrow, shade Sans.
Gauge: 21 sts and 36 rnds = 4" in lace pattern in the round.