Merino wool is one of the most durable natural fibres in menswear, but it is frequently damaged by incorrect care. The fibre structure that makes merino soft, temperature-regulating, and comfortable is also what makes it vulnerable to heat, agitation, and harsh detergents. Understanding exactly what to do — and what to avoid — is the difference between a cardigan that lasts ten years and one that pills, shrinks, or distorts after a season.
The Core Rules
Merino wool responds to three conditions that cause damage: high heat, mechanical agitation, and alkaline detergents. All three trigger felting — an irreversible matting of the fibres that shrinks the garment and destroys the softness. Avoid all three and a merino garment will hold its quality for years of regular wear.
Washing: Step by Step
Machine washing is safe for most modern merino knitwear, including the Ascova V2.0 Cardigan. Use a wool or delicate cycle at 30 degrees Celsius maximum. Select a low-spin speed — 600rpm or lower — to minimise mechanical agitation. Use a detergent specifically formulated for wool, such as Woolite or a similar wool-safe product. Avoid standard detergents, fabric softeners, and bleach, all of which damage wool fibres over time.
Hand washing is gentler. Submerge the garment in cool water with a small amount of wool detergent. Gently press and squeeze — never wring or twist. Drain, then gently press out excess water by folding the garment against the side of the basin. Do not wring.
Drying: The Critical Step
Never tumble dry merino wool. Even a single cycle in a tumble dryer at low heat can cause significant shrinkage and permanently alter the texture. After washing, lay the garment flat on a clean dry towel, reshape it gently to its original dimensions, and allow it to air dry away from direct sunlight or heat sources. Direct sunlight can cause colour fading in merino over time.
Dealing with Pilling
Pilling is a normal characteristic of merino wool — it is not a sign of poor quality. Pilling occurs when short fibres work loose from the knit structure and tangle together under friction, typically under the arms, along the sides, and at the elbows. Remove pills regularly with a fabric shaver (also called a lint shaver or bobble remover). This extends the life of the garment significantly and keeps it looking new. The Ascova V2.0 Cardigan is a mid-gauge construction that pills less than ultra-fine merino, but some pilling should still be expected with regular use.
Storage
Store merino wool folded flat, not on a hanger. Hanging a heavy knit over time stretches the shoulders and hem permanently. Use cedar balls or cedar blocks to protect against moths — moths are attracted to keratin fibres like wool and cashmere and can cause significant damage in storage. Avoid plastic bags for long-term storage as they trap moisture; use a breathable cotton bag or pillowcase instead.