When Not to Use Acrylic Yarn: 6 Situations to Choose Something Else
Sullivans International
âą3 min read
Acrylic yarn is affordable, versatile, and easy to care for, so itâs a common choice for knitters and crocheters. There are still situations when itâs better not to use acrylic: lacework, high heat, baby items, felting, high-end projects, and sensitive skin. In those cases, cotton, wool, silk, bamboo, or merino are often better.
This guide explains when not to use acrylic yarn and what to use instead.
Acrylic yarn is yarn made from synthetic (plastic) fibre. It is soft, colourfast, machine-washable, and budget-friendly. It does not felt, melts at high heat, and often has a bulky, smooth hand that is not ideal for very fine lace or for felting.
Why: Acrylic is often bulky and thick and lacks the fine, crisp definition and natural sheen that many lace patterns need.
Use instead: Cotton, silk, wool, or blends that are finer and smoother for delicate lace.
Why: Acrylic is synthetic and can melt or distort with high heat (e.g. hot stove, dryer, direct heat).
Use instead: Cotton, wool, bamboo, or other natural fibres that can withstand heat better for items used near heat (e.g. kitchen, hot environments).
Why: Some babies can have allergies or skin irritation with acrylic. For safety and comfort, natural fibres are often preferred next to skin.
Use instead: Cotton, bamboo, or merino wool (soft, breathable, gentle).
Why: Acrylic does not felt; felting requires animal fibres (e.g. wool, alpaca) that mat and shrink with heat and agitation.
Use instead: Wool or alpaca (and other feltable animal fibres).
Why: Acrylic usually has a less luxurious hand and less durability than premium natural fibres for sweaters, shawls, and scarves meant to look and last like luxury pieces.
Use instead: Wool, cashmere, silk, or blends of these for a high-end look and feel.
Why: Acrylic can feel itchy or uncomfortable for some people, especially those with sensitive skin.
Use instead: Cotton, bamboo, merino, silk, or alpaca for gentler next-to-skin wear.
| Situation | Prefer instead |
|---|---|
| Lacework | Cotton, silk, wool (finer, better definition) |
| High heat | Cotton, wool, bamboo |
| Baby wear | Cotton, bamboo, merino |
| Felting | Wool, alpaca |
| Luxury look/feel | Wool, cashmere, silk |
| Sensitive skin | Cotton, bamboo, merino, silk, alpaca |
Acrylic yarn is great for many projectsâbut avoid it for lace, high heat, baby items, felting, high-end pieces, and sensitive skin. Choosing cotton, wool, silk, bamboo, or merino in those cases improves result, comfort, and safety.
Itâs possible, but cotton, bamboo, or merino are often safer and gentler for babies; some infants react to acrylic.
Felting needs animal fibres with scales that lock together with heat and agitation. Acrylic is smooth synthetic and does not felt.
It can itch or irritate some people. Natural fibres (cotton, merino, bamboo, silk) are usually better for sensitive skin.
This article is part of our yarn knowledge series, offering practical insights into when to choose acrylic vs other fibres for knitters and crocheters.