Ontario Skies is a graceful summer wardrobe staple. The adjustable straps allow you to wear it in a number of ways, and make it very easy to adjust the size to the wearer.
An otherwise continuous stream of stockinette is made challenging by the insertion of a pleat on the back, short rows to form the bust, and short rows along the bottom edge for just-that-bit of extra coverage on your back.

Thanks to my great tech editor, Holly Priestley!

Yarn
Blue Sky Alpaca Skinny Cotton, 100% Organic Cotton, 150 y / 137 m per hank, Glacier, 3 (3, 4, 4, 5, 5) hanks
Needles
3.25 mm (US 3) circulars
Gauge
20 sts and 28 rows = 4” / 10 cm in stockinette
Sizes
XS (S, M, L, XL, XXL)
29 (33, 37, 41, 45, 49)” / 73.5 (84, 94,104, 114, 124.5) cm
Notions
stitch holders and/or dpns
Notes
Choose the bust size that is within =/- 2” / 5 cm of your actual bust measurement.
Skills
short rows, picking up stitches, cable cast on, knitting in the round