The Ultimate Guide to Choosing the Best Yarns for Baby Projects

The Ultimate Guide to Choosing the Best Yarns for Baby Projects
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Finding the best yarns for baby projects is essential. Creating handmade items for babies, especially for preemies, is a labor of love that requires special consideration. The right yarn can make all the difference in ensuring the items you crochet or knit are safe, soft, and comfortable for delicate skin. This comprehensive guide will explore the best yarns for baby projects, focusing on appropriate fibers, weights, and what to avoid.

Each year I host the Preemie Crochet Challenge. During the challenge I get together with my designer friends to bring you patterns that are perfect for premature babies. This yarn guide is an additional resource to go alongside this challenge.

If you are looking for a preemie baby crochet project why not check out my previous events:

Preemie Crochet Challenge 2023

The Preemie Crochet Challenge 2022

Preemie Crochet Challenge 2021

And Preemie Crochet Challenge 2020

Why Yarn Choice Matters for Baby Projects

Babies, particularly preemies, have extremely sensitive skin that can easily become irritated by rough or scratchy materials. Their immune systems are also underdeveloped, making them more susceptible to infections and allergies. Therefore, choosing the right yarn is crucial not only for comfort but also for health and safety.

Please note that this information is based on my own understanding, research and experience. You may wish to reach out to a local NICU or charity near you to determine the yarn types or brands that they would prefer donations be made with.

Key Considerations for Baby Yarns

  1. Softness: The yarn must be exceptionally soft to avoid irritating sensitive skin.
  2. Hypoallergenic Properties: Babies can be allergic to certain fibers, so hypoallergenic yarns are preferred.
  3. Washability: Baby items need frequent washing, so the yarn should be machine washable and durable.
  4. Safety: The yarn should be free from harmful chemicals and dyes. Babies, particularly preemies, have delicate and sensitive skin that is more susceptible to irritation and allergic reactions. Yarns containing harmful chemicals such as formaldehyde, chlorine, or heavy metals can exacerbate skin issues, leading to discomfort, rashes, or even more severe reactions. Certain chemicals present in yarns, such as volatile organic compounds (VOCs) emitted from synthetic fibers or dyes, can pose respiratory risks. Preemies, with their developing respiratory systems, are particularly vulnerable to such pollutants.
  5. Weight: The right yarn weight can affect the warmth and breathability of the finished item.

Best Yarn Fibers for Baby Projects

1. Cotton


  • Softness: High-quality cotton is very soft and gentle on the skin.
  • Breathability: Cotton is a breathable fiber, making it ideal for baby garments and blankets.
  • Hypoallergenic: It’s less likely to cause allergic reactions.
  • Durability: Cotton can withstand frequent washing, which is essential for baby items.


  • Weight: Cotton can be heavier, which might not be ideal for all baby garments.
  • Drying Time: Cotton takes longer to dry compared to synthetic fibers.

Cotton yarn is excellent for baby blankets, summer garments, and washcloths. Look for organic cotton yarns, which are free from pesticides and harsh chemicals.

2. Bamboo

This is one of my favourites, and it often comes in a cotton / bamboo mix!


  • Softness: Bamboo yarns are incredibly soft, often compared to silk.
  • Antibacterial: Naturally antibacterial, which can help prevent infections.
  • Sustainability: Bamboo is a renewable resource, making it an eco-friendly choice.
  • Hypoallergenic: Less likely to cause allergic reactions.


  • Durability: Bamboo yarns can be less durable than cotton, especially if not blended with other fibers.
  • Cost: Bamboo yarns can be more expensive.

Bamboo yarns are perfect for delicate baby hats, socks, and garments. They are especially suitable for items that need to be extra gentle on the skin.

3. Acrylic

Acrylic yarns are really easy to get hold of, and provide great value for money.


  • Affordability: Acrylic yarns are generally less expensive.
  • Washability: They are machine washable and dry quickly.
  • Variety: Comes in a wide range of colors and textures.


  • Softness: Not all acrylic yarns are soft enough for baby skin. Look for special baby-soft acrylics.
  • Breathability: Less breathable than natural fibers, which might not be ideal for warmer climates.

Acrylic yarns can be used for baby blankets, toys, and winter garments. Ensure you select high-quality, soft acrylics specifically designed for babies.

Photo showing merino sheep. Surprisingly, you could use merino yarns for your baby projects, but I would recommend this for older babies rather than preemie.

4. Merino Wool

Lots of people prefer merino wool to cashmere or silk!


  • Softness: Merino wool is one of the softest wool fibers available.
  • Warmth: Provides excellent insulation, ideal for colder climates.
  • Hypoallergenic: Merino wool is less likely to cause allergies compared to other wools (although can still cause some irritation).


  • Care: Requires more delicate care, usually hand wash and air dry.
  • Cost: Merino wool can be quite expensive.

Merino wool is great for baby sweaters, hats, and blankets intended for use in colder environments. Always opt for superwash merino to make it easier to care for.

Yarns to Avoid for Baby Projects

1. Regular Wool

While wool is warm, it can be scratchy and irritating to sensitive baby skin. Regular wool can also cause allergic reactions in some babies.

2. Mohair and Angora

These fibers are very soft but can shed easily, posing a risk of inhalation and choking for babies. They are best avoided for baby projects.

3. Metallic and Glitter Yarns

Glittery or metallic yarns are not acceptable yarns for baby projects

These look pretty … BUT …. Yarns with metallic threads or glitter can be scratchy and are not suitable for delicate baby skin. They can also pose safety risks if the fibers become loose.

4. Rough Acrylics

Not all acrylic yarns are created equal. Some can be rough and plasticky, which is uncomfortable for babies. Always opt for those specifically labeled as soft or baby-friendly.

Yarn Weights for Baby Projects

1. Super Fine (Sock/Fingering)

Super fine yarns are lightweight and suitable for detailed baby garments and delicate accessories. They provide a light and airy texture, perfect for preemie clothes.

2. Fine (Sport/Baby)

Fine yarns are slightly thicker than super fine and are ideal for baby clothes, lightweight blankets, and accessories. They strike a good balance between warmth and breathability.

3. Light (DK/Double Knit)

Lightweight yarns are versatile and commonly used for baby blankets, sweaters, and hats. They offer a bit more warmth while still being relatively light.

4. Medium (Worsted/Aran)

Medium weight yarns provide warmth and are excellent for heavier blankets, winter garments, and outerwear. However, they can be too bulky for very small or preemie babies.

Tips for Choosing the Best Yarns for Preemie Projects

Preemies have even more delicate skin and greater sensitivity than full-term babies. Here are some additional tips to keep in mind:

  1. Check for Certification: Look for yarns certified by organizations like OEKO-TEX®, which ensures the yarn is free from harmful substances.
  2. Prioritize Softness: Feel the yarn before purchasing. It should feel exceptionally soft to the touch.
  3. Avoid Loose Fibers: Ensure the yarn does not shed fibers easily, which can pose inhalation risks.
  4. Color Considerations: Natural or undyed yarns are ideal as they are less likely to contain harsh chemicals from dyes.
  5. Hypoallergenic Labels: Choose yarns specifically labeled as hypoallergenic to minimize the risk of allergic reactions.
photo showing baby clothes on a clothes line for the caring for handmade items section of the post.

Caring for Handmade Baby Items

Handmade baby items require proper care to maintain their softness and safety. Here are some tips:

  1. Washing: Use gentle, fragrance-free detergents. For delicate fibers like merino wool or bamboo, hand wash in cold water.
  2. Drying: Air drying is preferred to maintain the shape and integrity of the item. If using a dryer, opt for a low heat setting.
  3. Storage: Store baby items in a cool, dry place. Avoid plastic bags which can trap moisture and lead to mold growth.
  4. Regular Inspections: Check for any signs of wear and tear, loose threads, or pilling, and repair or replace items as necessary.

1. Bernat Baby

Bernat offers a variety of baby-specific yarns, including the popular Bernat Baby Blanket and Bernat Softee Baby, known for their softness and variety of colors.

2. Lion Brand Baby Soft

Lion Brand’s Baby Soft yarn is lightweight and comes in pastel colors, perfect for baby garments and blankets.

3. Red Heart Soft Baby Steps

This yarn is designed to be gentle on baby skin, easy to care for, and comes in a range of baby-friendly colors.

4. Plymouth Yarn Dreambaby DK

Dreambaby DK is a fine yarn that is soft, durable, and machine washable, making it ideal for baby projects.

5. Debbie Bliss Baby Cashmerino

This luxury yarn combines merino wool and cashmere, offering unmatched softness and warmth for special baby items.


Choosing the right yarn for baby projects, especially for preemies, involves careful consideration of softness, hypoallergenic properties, washability, and safety. Cotton, bamboo, soft acrylics, and merino wool are excellent choices, while regular wool, mohair, and metallic yarns should be avoided. By selecting the appropriate yarn, you ensure that your handmade items are not only beautiful but also safe and comfortable for the littlest recipients.

Creating items for babies is a heartwarming hobby that requires attention to detail and a thoughtful approach. With this guide, you’re well-equipped to choose the best yarns for your baby projects, ensuring they are cherished and safe for years to come.

Don’t forget ….. Tag me in your baby project makes on Facebook and Instagram.

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