Start with the fiber mix
Knitting for Olive lists Soft Silk Mohair as 70% mohair and 30% silk. Berroco Aerial contains 65% superkid mohair and 35% silk. Both come in 25 g balls, but neither those percentages nor the lace labels establish the same halo, softness or finished fabric. We have not physically tested them, and construction details are not verified here.
Aerial carries more length per ball
Soft Silk Mohair publishes 225 m per ball; Aerial publishes 260 m. For an illustrative requirement of 900 m of this strand, four balls cover the stated length for either yarn, although the remaining allowance differs. Recalculate at your actual requirement, round to whole packages, and allow separately for swatching. Do not exchange balls solely by their 25 g weight.
Held together is its own comparison
Aerial publishes a broad 18–24-stitch gauge range; the captured Soft Silk Mohair product page does not supply a gauge. A pattern holding mohair with merino needs a sample of both strands together. The label gauge of the mohair alone cannot predict that combined result. Preserve the other strand while testing this change, so you can see what the replacement changes.
Care and retail evidence
Both manufacturers specify cool or cold hand washing and flat drying. The detail table links Heavenly Yarns for Soft Silk Mohair and Yarn.com for Aerial. These are checked US retailer listings; exact inventory and dispatch origin are not independently confirmed. Compare the dried sample’s coverage, stitch visibility and feel in the intended pattern fabric.
Specification sources: Knitting for Olive Soft Silk Mohair. Berroco Aerial. Sources and retail evidence are detailed below. These are desk comparisons; no physical testing has been performed.