How to Choose the Best Yarns for Your Knitting Project

by Nina Ellis September 22, 2025

Choosing the right yarn is one of the most important steps in any knitting project. Whether you’re a beginner or an experienced maker, your yarn choice affects the look, feel, durability, and sustainability of your finished piece.

As someone who has been knitting and crocheting for over 30 years — and now sewing my own wardrobe too — I’ve learned that yarn isn’t just material, it’s the foundation of slow fashion. The right yarn helps you build a wardrobe that’s beautiful, intentional, and long-lasting.

In this guide, I’ll share how to choose the best yarn for knitting projects, with a focus on eco-friendly, natural, and sustainable fibers.

Step 1: Understand Yarn Fibers

The first step in choosing the best yarn for your knitting project is to understand the fibers.

Natural fibers (wool, cotton, alpaca, linen, silk):
Breathable, eco-friendly, and durable. Perfect for slow fashion pieces you’ll love for years.
Blends (wool + nylon, cotton + acrylic):
Blends can add stretch or durability, but they’re less eco-friendly. Choose carefully if your goal is sustainability.
Synthetic fibers (acrylic, polyester):
Affordable and widely available, but not biodegradable and less breathable. These are best avoided if you’re creating an intentional wardrobe.

👉 For sustainable knitting, natural and organic fibers are always the better choice.

Step 2: Match Yarn Weight to Your Project

Yarns come in different weights (thicknesses), and using the wrong one can completely change the outcome.

Lace / Fingering Weight – Great for lightweight shawls or delicate tops.
DK (Double Knit) – Perfect balance for sweaters, cardigans, and everyday pieces.
Aran / Worsted – Cozy and warm, ideal for autumn and winter knits.
Chunky / Bulky – Quick projects like scarves, hats, and statement pieces.

💡 Tip: Always check your pattern’s recommended yarn weight, or swatch before starting.

Step 3: Choose Eco-Friendly & Sustainable Yarns

For a slow fashion wardrobe, yarn choice goes beyond color and texture. It’s about values.

Organic Cotton – Soft, breathable, and pesticide-free.
Recycled Wool – Reduces textile waste while keeping all the warmth of virgin wool.
Alpaca – Naturally hypoallergenic and luxurious.
Plant-dyed yarns – Beautiful colors created without harmful chemicals.

Choosing sustainable yarns supports both the planet and your wardrobe’s longevity.

Step 4: Think About Color & Texture

Ask yourself: Will this yarn fit into my intentional wardrobe?

Neutrals (cream, beige, grey, navy) → timeless staples.
Seasonal pops (rust, mustard, deep green) → perfect accents without going out of style.
Textures (chunky cables, lace stitches) → add interest without needing lots of colors.

Slow fashion is all about quality over quantity — so pick colors and textures you’ll love wearing again and again.

Step 5: Budget Wisely

Yes, eco-friendly yarns can be more expensive than synthetic ones. But remember:

They last longer.
They look better.
They make clothes you’ll actually want to wear for years.

👉 In the long run, you’ll save money by creating fewer, better pieces instead of replacing fast fashion items.

Final Thoughts: Build Your Wardrobe With Intention

Choosing the best yarn isn’t just about what looks nice on the shelf — it’s about building a wardrobe that reflects your values.

Pick natural, sustainable fibers.
Match yarn weight to your project.
Think about long-term wearability and style.

Every ball of yarn you buy is an investment in your skills, your wardrobe, and the planet. 🌍

So next time you’re standing in front of the yarn shelf, ask yourself: Does this yarn fit into my slow fashion journey?