Icelandic wool yarn

Léttlopi - Icelandic Wool Yarn

The classic lopapeysa yarn

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100% authentic Icelandic wool

Direct from Iceland, worldwide

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Family-run since 2013

About the yarn

The classic lopapeysa yarn

Léttlopi is the yarn most Icelandic sweater patterns are written for — light, warm and weather-resistant, spun by Ístex from pure Icelandic wool. If a pattern simply says lopi, this is usually the one it means.

At a glance

Weight: Aran / worsted
Ball: 50 g ≈ 100 m
Gauge: 18 sts / 10 cm
Needles: 4.5–5.5 mm
Fibre: 100% Icelandic wool
Care: Hand wash, dry flat
Best for: Lopapeysur, hats & mittens

Lettlopi yarn - 0005 Black Heather

$5.65

(5.0)

Lettlopi yarn - 0051 White

$5.65

(5.0)

Lettlopi yarn - 0052 Black Sheep Heather

$5.65

(5.0)

Lettlopi yarn - 0053 Acorn Heather

$5.65

(5.0)

Lettlopi yarn - 0054 Light Ash Heather

$5.65

(5.0)

Lettlopi yarn - 0056 Ash Heahter

$5.65

(4.8)

Lettlopi yarn - 0057 Grey Heather

$5.65

(5.0)

Lettlopi yarn - 0058 Dark Grey Heather

$5.65

(5.0)

Lettlopi yarn - 0059 Black

$5.65

(5.0)

Lettlopi yarn - 0085 Oatmeal Heather

$5.65

(5.0)

Lettlopi yarn - 0086 Ligth Beige Heather

$5.65

(5.0)

Lettlopi yarn - 0867 Chocolate Heather

$5.65

(5.0)

Lettlopi yarn - 1402 Heaven Blue Heather

$5.65

(5.0)

Lettlopi yarn - 1403 Lapis Blue Heather

$5.65

(5.0)

Lettlopi yarn - 1404 Glacier Blue

$5.65

(5.0)

Lettlopi yarn - 1405 Bottle Green Heather

$5.65

(5.0)

Lettlopi yarn - 1406 Spring Green Heather

$5.65

(5.0)

Lettlopi yarn - 1407 Pine Green Heather

$5.65

(5.0)

Lettlopi yarn - 1409 Garnet Red

$5.65

(5.0)

Lettlopi yarn - 1412 Pink Heather

$5.65

(5.0)

Lettlopi yarn - 1414 Violet Heather

$5.65

(5.0)

Lettlopi yarn - 1415 Rough Sea

$5.65

(4.9)

Lettlopi yarn - 1416 Moor

$5.65

(5.0)

Lettlopi yarn - 1417 Frostbite

$5.65

(5.0)

Lettlopi yarn - 1418 Straw

$5.65

(5.0)

Lettlopi yarn - 1419 Barley

$5.65

(5.0)

Lettlopi yarn - 1420 Murky

$5.65

(5.0)

Lettlopi yarn - 1700 Air Blue

$5.65

(5.0)

Lettlopi yarn - 1701 Fjord Blue

$5.65

(4.7)

Lettlopi yarn - 1702 Milkyway

$5.65

(5.0)

Lettlopi yarn - 1703 Mimosa

$5.65

(5.0)

Lettlopi yarn - 1704 Apricot

$5.65

(5.0)

Lettlopi yarn - 1705 Royal Fuchsia

$5.65

(5.0)

Lettlopi yarn - 1706 Lyme Grass

$5.65

(5.0)

Lettlopi yarn - 1707 Galaxy

$5.65

(5.0)

Lettlopi yarn - 9418 Stone blue Heather

$5.65

(5.0)

Lettlopi yarn - 9419 Ocean Blue

$5.65

(5.0)

Lettlopi yarn - 9420 Navy Blue

$5.65

(5.0)

Lettlopi yarn - 9421 Celery Green Heather

$5.65

(5.0)

Lettlopi yarn - 9423 Lagoon Heather

$5.65

(5.0)

Lettlopi yarn - 9426 Golden Heather

$5.65

(5.0)

Lettlopi yarn - 9427 Rust Heather

$5.65

(5.0)

Lettlopi yarn - 9431 Brick Heather

$5.65

(5.0)

Lettlopi yarn - 9432 Grape Heather

$5.65

(5.0)

Lettlopi yarn - 9434 Crimson Red

$5.65

(5.0)

Get inspired

What will you make?

Knitting kits with this yarn — yarn, pattern and everything you need in one box.

Knitting kit

Uppstytta

from $96.00

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Anniversary

from $126.00

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Spring Sun

from $89.99

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Long Late Summer Jacket Red

from $124.80

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Not sure which lopi?

Which lopi is right for you?

Pick the right weight for your project — the highlighted row is the yarn on this page.

Yarn	Weight	Gauge	Needles	Best for
Einband	Lace	23 sts	2.5–4 mm	Shawls, lace, fine work
Léttlopi Most popular	Aran	18 sts	4.5–5 mm	The classic lopapeysa, hats, mittens
Álafoss Lopi	Bulky	13 sts	6–6.5 mm	Outerwear, blankets, fast sweaters
Jöklalopi	Super bulky	9 sts	8–9 mm	Very warm, very quick knits
Plötulopi	Unspun plates	varies	4.5–6 mm	Softest, lightest lopi — single or doubled

Good to know

Léttlopi questions, answered

How much Léttlopi do I need for a lopapeysa?

A typical adult sweater takes 400–500 g of the main colour (8–10 balls) plus a ball or two of each contrast colour. Every pattern lists exact amounts per size — and our knitting kits take the guesswork away entirely.

Is Léttlopi itchy?

It has a rustic feel straight off the needles and softens noticeably after washing and wear — it is made to be worn over a light layer rather than on bare skin. For next-to-skin softness, look at Kambgarn, our soft merino yarn.

What needle size should I use?

Most patterns call for 4.5–5 mm (US 7–8) at a gauge of about 18 stitches per 10 cm. Always knit a small swatch first to check your tension.

Can I see the colours before buying?

Screens lie about wool. Our Lopi colour cards show every shade in real yarn — knitters planning a full sweater swear by them.

Léttlopi is the yarn the classic lopapeysa is knitted from — a two-ply, aran-weight lopi spun by Ístex from 100% Icelandic wool. Lighter than Álafoss Lopi, quick on 4.5–5 mm needles, and available in the widest colour range of any lopi: the natural sheep shades plus rich heathers and brights.

Like all true lopi it keeps both fibres of the Icelandic fleece — the soft insulating undercoat and the weather-resistant outer hair — so your finished sweater is warm, light and surprisingly rain-tolerant. It softens noticeably with washing and wear.

Planning a sweater? A typical adult lopapeysa takes roughly 8–10 balls of main colour plus contrasts — every pattern lists exact amounts, our yarn guide compares the lopi family honestly, and the colour cards show every shade in real wool. Prefer it all boxed? See the Léttlopi kits.