Yorkie Yarns Tweedy B DK is 85% SW Merino and 15% NEP. The NEP does not take the dye, so you're left with a delicious tweed yarn that is wonderful to knit with. Perfect for sweaters or shawls.
Yardage - 231yds/100grams, 4ply construction
Needle - US 4
Content - 85% SW Merino/15% NEP
Olive Knits 4-Day Sweater KAL information and pattern link can be found here: https://www.oliveknits.com/product/fireworks-4-day-kal/