Throw vs Blanket: Does the Distinction Matter?
Technically: a throw is smaller (typically 125–150 cm wide, 150–180 cm long) and primarily decorative — draped over furniture, used for casual warmth. A blanket is larger (bed-width) and primarily functional.
In practice: the distinction has collapsed. Quality throws are now large enough to wrap around one person completely, and the best blankets are beautiful enough to live on the sofa when not in use. The word you use matters less than the size you buy. If the throw is too small to cover you when folded around your shoulders, it's doing one job (decoration) and failing at the other (warmth). Buy the size that does both.
Fibres: The Most Important Decision
The fibre determines everything: warmth-to-weight ratio, softness, durability, how it feels in the hand and what it looks like after two years of regular use. This decision comes before colour, before weave, before price per se.
The options, ranked honestly:
- Cashmere: the lightest, warmest and softest natural fibre. A 300 g cashmere throw provides more warmth than a 600 g wool throw at half the weight. Correct cashmere is extraordinarily soft immediately; it does not require break-in. Very high-quality cashmere doesn't pill at all; lower grades pill within months. The price difference reflects this entirely.
- Merino wool: fine, soft, warm and more durable than cashmere. A merino throw is the best choice for daily use by people who want cashmere quality without cashmere fragility. Merino doesn't pill as readily and tolerates handling better.
- Lambswool: slightly coarser than merino but very warm, durable and often better-priced. The traditional material for classic Scottish and Irish blankets. Softens significantly with washing.
- Alpaca: warmer than wool, hypoallergenic (fewer of the lanolin proteins that cause wool sensitivity), naturally without scales so it doesn't felt easily. The right choice for anyone who finds wool itchy.
- Mohair: a distinctive fluffy texture from Angora goat fibre. Light and warm with a characterful, slightly hairy surface that not everyone loves. Works beautifully as a throw draped over a sofa; less practical as a blanket used for warmth.
- Cotton and linen: discussed separately below.
Cashmere: What to Know Before You Buy
Cashmere is graded by fibre diameter and consistency. The finest cashmere (Grade A) has fibres of 14–15 microns — thinner than the finest merino wool. Cheap cashmere uses shorter, coarser fibres blended with wool or other fibres; it pills within weeks and feels coarse after the first wash.
How to identify quality cashmere before buying: it should feel immediately, consistently soft. Not soft in one direction and slightly rough in the other (sign of inconsistent fibre blend). It should have a light, springy weight — not dense and heavy, which indicates low-grade blending. And it should not generate obvious lint when rubbed against a dark sleeve — excessive shedding is a quality indicator at the lower end.
The country of production matters less than the fibre source. Mongolian and Chinese cashmere at the top grades are both excellent. The origin printed on the label refers to where the garment was made, not necessarily where the cashmere was sourced. Look for brands that specify fibre grade and source.
Wool: The Most Honest Material
Wool is the most honest throw material because it doesn't pretend to be anything it isn't. A 100% Shetland wool or Welsh wool blanket is thick, warm, durable and will last decades. It might be slightly scratchy on bare skin for the first few washes. After that, it's simply reliable — the kind of object you find in a farmhouse kitchen that's been there for thirty years and still works perfectly.
The specific wool types that make the best throws:
- Shetland wool: fine, warm, historically associated with the finest British knitting traditions.
- Merino wool: the softest and most refined wool, fine enough to wear next to skin without irritation. Better for throws used directly against the body.
- Lambswool: the first shearing from a lamb under seven months old. Particularly fine and soft, but less uniform than merino.
A pure new wool throw will pill slightly in the first few washes as loose fibres work out of the surface. This is normal and stops after three or four washes. It's a quality indicator, not a defect — it means the fibres are natural, not synthetic.
Cotton and Linen Throws
Cotton and linen throws are the summer option. They provide minimal insulation but excellent drape, breathability and a casual aesthetic that works perfectly in warm weather or in rooms that tend to run warm.
A washed linen throw draped over a sofa has the same relaxed, textured character as linen bedding — slightly rumpled, warm in tone, organic. It works in exactly the rooms where wool would look too heavy. For a Mediterranean-climate home or a summer house: linen or cotton throws. For a Scottish farmhouse in January: wool.
Browse our blanket and throw collection including wool, cashmere-blend and cotton options, plus our linen range for warm-weather textiles.
Weight and GSM
GSM (grams per square metre) tells you the density of the fabric. For throws:
- 200–300 GSM: lightweight. Good for summer, warm rooms or purely decorative use. Won't provide significant warmth.
- 350–450 GSM: the all-season standard. Warm enough for cool evenings, light enough to not be oppressive in spring and autumn.
- 500–700 GSM: heavy winter throws. Designed for real cold. Dense, substantial, typically wool or cashmere-blend.
For cashmere specifically, weight is misleading because the fibre is so efficient at insulation: a 280 GSM cashmere throw is warmer than a 500 GSM cotton throw. Compare within fibre categories, not across them.
Weave Structures
- Plain weave: the most stable structure. Minimal texture, maximum clarity of pattern if the throw is patterned. Durable.
- Herringbone: a V-shaped twill weave producing the classic chevron pattern. Dense, slightly stretchy, very durable. The traditional structure for heavy wool blankets.
- Waffle or honeycomb: a raised textural weave that increases the apparent surface area, improving warmth relative to weight. Often used for cotton and linen throws.
- Chunky knit or cable: very thick, very textural. A deliberate statement piece on a sofa. Not for actual warmth use — for visual weight and the appearance of cosiness.
How to Style a Throw on a Sofa
Two positions that always work:
The casual drape: fold the throw in thirds lengthwise, then drape it over one arm and across the seat cushion toward the opposite arm. Allow it to fall naturally with some pooling at the end. This looks unstudied and accessible — like someone just got up from under it.
The structured fold: fold the throw into a neat rectangle and place it over one sofa arm, or at the foot of the sofa perpendicular to the seat. Formal, clean, slightly hotel-like. Works better in rooms with a minimal or architectural aesthetic.
Never fold a throw in a small square and place it perfectly centred on the sofa. It looks like it's waiting to be unfolded and has never been used. A throw is an object of use; let it look like one.
Care That Doesn't Ruin It
Most throws are destroyed by well-intentioned machine washing at the wrong temperature. The actual rules:
- Wool and cashmere: hand wash in cool water with a wool-specific detergent, or machine wash on a wool/delicate cycle at 30°C maximum. Never tumble dry — lay flat to dry in shape. Tumble drying felts wool and shrinks cashmere dramatically.
- Cotton and linen: machine wash at 40°C. Tumble dry on low or line dry. Will soften significantly with repeated washing.
- Alpaca: hand wash cool, dry flat. Alpaca doesn't felt as easily as wool but still benefits from gentle handling.
- Storage: clean before storing seasonally. Wool moths are attracted to soiled fibres, not clean ones. Store in a breathable fabric bag with cedar blocks, never in plastic.
Frequently Asked Questions
- What is the warmest throw material?
- By warmth-to-weight ratio: cashmere, followed by qiviut (musk ox) if you can find it, then alpaca, then merino wool. For absolute warmth regardless of weight: a heavy wool blanket at 600+ GSM. For practical everyday warmth in a lightweight throw: high-grade merino or cashmere blend at 350+ GSM.
- Does cashmere pill and how do I prevent it?
- Lower-grade cashmere pills; high-grade cashmere pills minimally or not at all. If your cashmere throw pills, use a cashmere comb or a fabric shaver to remove the pills — the underlying fabric is not damaged. To prevent pilling: wash inside-out on a delicate cycle, dry flat, and avoid high-friction contact (rough sofa surfaces, dog claws). Quality cashmere pills less because the fibres are longer and more uniform.
- What size throw covers one person?
- A 130 × 170 cm throw wraps around one seated adult comfortably. A 150 × 200 cm throw is generous for one person and can cover two if you're not fussy about coverage. Most decorative throws are sold at 130 × 170 cm; if warmth is the primary requirement, size up.
- Can I use a throw as a bed blanket?
- Yes. A high-quality wool or cashmere throw at 150 × 200 cm or larger makes an excellent additional blanket layer on a bed. Heavier wool blankets at this size are specifically designed as bed blankets. The distinction between 'throw' and 'blanket' in the product category is largely marketing — both are flat woven or knitted rectangles of textile.
- How do I get a throw to look good on a sofa?
- Drape rather than fold. Let it fall naturally rather than placing it in a geometrically precise position. A casual drape over one arm and across the seat, with some natural pooling, looks used and accessible. The goal is a throw that looks like someone got up from under it, not one that looks like it was placed for a photograph.
Browse our throw and blanket collection — wool, alpaca and cashmere-blend options selected for the combination of warmth, appearance and durability that justifies permanent space on your sofa.
