100% Mongolian Baby Camel.

Handknitting.com calls the 8-ply “worsted/aran weight”, but gives no details for needle range or gauge.

As an aside, there is a pattern that uses this yarn (’Camel Cabled Cardigan’ in BOYFRIEND SWEATERS) which also calls it worsted weight. The pattern gauge is 20 sts on US 6 needles, and yarns that knit to this gauge have been called either light worsted or heavy DK.