Owlet

A lace yarn, 50% American Wool, 50% Alpaca, 240 yd (219 m) per 50 g ball.

Weight	Lace, 0
Length per ball	240 yd · 219 m
Ball weight	50 g
Length per 100 g	480 yd · 439 m
Fiber	50% American Wool, 50% Alpaca
Gauge	7–6.5 stitches per inch on 2.25–3.25 mm (US 1–3) needles
Source	woolandcompany.com

Use instead

Your pattern uses 10 balls of Owlet.

Same weight and fiber family, and close in length per 100 g. Closest first.

Same length: 2,400 yd. Buy one extra ball to be safe.

Yarn	Fiber	You need	Shop
Prairie Madelinetosh	100% Merino Wool	3 balls of 840 yd	Buy at Wool and Company
Impression Madelinetosh	70% Mohair \| 30% Silk	6 balls of 420 yd	Buy at Madelinetosh

Same weight: the weight number when the source gives one, or the brand's weight word (DK, Worsted) when it doesn't.
Length per 100 g within 10% of this yarn's, when both list a ball weight.
Gauge within 10%, when both list one.
Same fiber family: animal fibers (wool, alpaca, silk…), plant fibers (cotton, linen, viscose…) or synthetics (acrylic, nylon…), whichever this yarn has most of.
Closest first: still made before discontinued, then more fiber in common, then closer length per 100 g.
Among yarns that match just as closely, ones sold by our partner shops come first.

Knit a swatch before you start: a different fiber can change your gauge. To add a safety margin, use Skeins for a yarn swap.