Alpaca vs Wool: A Complete Fiber Comparison for Yarn Buyers

Alpaca and wool are both staple fibers in premium yarn production, but they differ in ways that matter for both hand knitters and knitwear manufacturers. Understanding these differences helps you choose the right fiber for your project — and avoid expensive mistakes.

We've been sourcing and selling both fibers for over 70 years, working directly with Italian mills that process the finest alpaca and wool available. Here's what we've learned.

Understanding the Fibers

Alpaca

Alpaca fiber comes from South American camelids — relatives of llamas and camels — raised primarily in Peru, Bolivia, and Chile at altitudes above 4,000 meters. There are two breeds:

• Huacaya (90% of production): Dense, crimped fiber similar in structure to sheep's wool. This is what most "alpaca yarn" is made from.
• Suri (10% of production): Lustrous, silky fiber that hangs in long locks. More expensive and used for luxury applications.

Baby alpaca (from the first shearing or simply the finest fibers, 20-23 microns) is the grade most commonly found in premium Italian yarn. Royal alpaca (under 20 microns) is extremely rare and luxurious.

Wool

"Wool" encompasses fibers from many sheep breeds. For fair comparison with alpaca, we focus on fine wools:

• Merino: 15-24 microns, the gold standard for softness
• Lambswool: The first shearing from young sheep, naturally soft
• Shetland: Hardier fiber with excellent warmth

Italian mills like Zegna Baruffa and Lana Gatto are known for processing these wools into yarns that maximize their natural qualities.

Head-to-Head Comparison

Warmth

Alpaca is significantly warmer than wool — approximately 5 times warmer than sheep's wool by weight. This is because alpaca fiber has microscopic air pockets within each strand, providing superior insulation. If warmth is your primary concern, alpaca is the clear choice.

Weight

Alpaca yarn tends to be heavier than wool yarn of the same thickness. This means alpaca garments drape differently — they hang and flow rather than spring and bounce. This is beautiful in scarves and shawls but can cause sweaters to stretch out over time if not blended with a more elastic fiber.

Elasticity

Wool (especially merino) has natural crimp that gives it excellent memory — it bounces back after stretching. Alpaca has very little crimp and almost no elasticity. This is the most important practical difference:

• Wool is better for fitted garments (sweaters, socks, hats)
• Alpaca is better for draped garments (scarves, shawls, blankets)

Allergenicity

Alpaca is hypoallergenic — it contains no lanolin, which is the primary irritant in sheep's wool. People who are sensitive to wool can often wear alpaca without any reaction. This makes alpaca an excellent choice for baby items and sensitive skin.

Pilling

Wool pills but can be de-pilled and refreshed. Alpaca pills less than wool due to its smoother fiber surface, but when it does pill, the pills are harder to remove. Both fibers pill less when processed by Italian mills using gentle methods.

Color Range

Alpaca comes in over 22 natural colors — from white through fawn, brown, grey, and black. This means many alpaca yarns can be left undyed or lightly dyed, which appeals to eco-conscious consumers. Wool typically comes in white or off-white and relies on dyeing for color variety, though Italian dye houses produce extraordinary colors with superior fastness.

Care

Both fibers are best hand-washed or dry-cleaned. Wool is somewhat more forgiving of accidental machine washing (especially superwash treated merino). Alpaca should always be treated gently — it can felt if agitated in water, though less readily than wool.

Price Comparison

• Baby alpaca yarn: €25-50 per 100g at retail
• Fine merino yarn: €12-25 per 100g at retail
• Alpaca-wool blends: €15-35 per 100g at retail

Through our stock model, we offer these at approximately 50% below retail.

Best Uses for Each Fiber

Choose Alpaca When:

- Making scarves, wraps, or blankets (where drape matters) - The wearer has wool sensitivity - You want exceptional warmth in a lightweight fabric - Natural, undyed colors suit your design - Making luxury accessories or gift items

Choose Wool When:

- Making fitted garments that need to hold their shape - You need elasticity for stitch definition - The garment will be worn frequently and needs durability - You want to felt or full the finished item - Budget is a consideration

The Blend Solution

Many of the best Italian yarns combine both fibers. Common blends:

• 70% Alpaca / 30% Wool: Maximizes warmth and softness while adding structure
• 50% Alpaca / 50% Merino: Balanced blend for versatile garments
• Alpaca with silk or cashmere: Ultra-luxury combinations

We stock all these combinations from leading Italian producers. Browse our catalog or contact our team for guidance on finding the perfect alpaca or wool yarn for your project.