Thermal underwear by retailer
Thermal underwear by retailer is a map of the shops and brands a buyer meets and the fibre each layer is built from: a store, a label and a fabric choice, and the retailer decides which of those you get at which price. The 3 main retail tiers are a value chain of 5 to 9 pound baselayers, a mid-range of 15 to 30 pound merino or technical synthetic layers, and a premium tier of 60 to 120 pound garments, and the tiers separate by fibre, fit and cut, not by warmth alone. Within that map, helly hansen thermal underwear is the 30 to 80 pound Scandinavian option a buyer meets at its own stores and at a few department houses, and it is one of the thermal underwear brands to know before you pick a retailer.
Thermal underwear brands: the names a buyer meets
The thermal underwear brands a buyer meets cluster into 4 groups, and the groups differ in how the brand sells: a chain, a house, an online retailer or a direct store. The 4 groups and their role are the chain, such as Damart and the UK high street, the department house, such as John Lewis and Selfridges, the online market, such as Amazon and its 20,000 listed baselayers, and the direct brand store, such as helly hansen, Uniqlo, Icebreaker, Smartwool and the 800+ stores of Under Armour. Each group sets a different price band, and the fibre you actually get inside the band is what separates a 15 pound layer from a 40 pound one that only looks warmer on the label.
- Value chain: Damart, Primark and the 9 pound tier, built from synthetic or cotton-blend 100 to 150 gsm fabric
- Department house: John Lewis and Selfridges, where 20 to 60 pound branded layers sit side by side
- Online market: Amazon thermal underwear, where a 5 pound no-name sits next to a 30 pound merino with a 4.5 star average
- Direct brand store: helly hansen, Uniqlo, Icebreaker, Smartwool and Under Armour, where you buy the label at the source
Thermal underwear helly hansen: what the label actually is
To place helly hansen, start from the store and the garment, and the answer is that helly hansen is a Norwegian outdoor label that makes a thermal layer in a mid-weight synthetic or merino blend, priced at 30 to 80 pound, and its strength is the fit and the cut, not the fibre. The layer sits at the 30 to 80 pound mark, which is above the 9 pound value tier and below the 120 pound premium tier, so a buyer is paying for a tailored mid-weight baselayer and a consistent size run, and not for a premium fibre. The 2 properties that decide the cut, and the ones that carry the name, are the fabric weight of 150 to 250 gsm and the seam-to-seam fit, and both of those point at the properties that decide which fibre wins.
Which retail chain carries which fibre
To read the chain, match the store to the fibre it defaults to, and the table below is the match. The 4 store types and the fibre each one defaults to are set out, and the default is what you get at that price unless you read the label: a value chain gives you a synthetic or cotton-blend 100 to 150 gsm fabric at 5 to 9 pound, a department house gives you a branded 15 to 30 pound layer that is often merino or a merino blend, an online market gives you a wide range from a 5 pound no-name to a 30 pound merino, and a direct brand store gives you the label's own blend at the source.
| Store type | Examples | Default fibre | Typical price |
|---|---|---|---|
| Value chain | Damart, Primark | Synthetic or cotton blend, 100 to 150 gsm | 5 to 9 pound |
| Department house | John Lewis, Selfridges | Merino or merino blend, branded | 15 to 30 pound |
| Online market | Amazon and its 20,000 baselayers | Mixed, from no-name synthetic to 30 pound merino | 5 to 40 pound |
| Direct brand store | helly hansen, Uniqlo, Icebreaker, Smartwool | The label's own blend, 150 to 250 gsm | 30 to 80 pound |
The value chain is where a buyer buys a Damart thermal underwear at the 9 pound price, and the fibre there is a synthetic or cotton-blend 100 to 150 gsm fabric that traps air in the weave, and it is the cheapest way to keep the body warm and the one that gives up the most control over the fibre. The online market is where a buyer buys an Amazon thermal underwear at any price from 5 pound, and the range there is so wide that the price does not tell you the fibre, and only the label does.
How the fibre decides which layer wins the cold
To understand the fibre, follow the fibre to the finished garment, and the answer to How thermal underwear works is that the fibre traps air in the weave and the structure of the fibre holds that air against the body, so the warmth comes from the layer of air and not from the fibre itself. Merino holds the air at the 19 to 21 micron fibre diameter, and the crimp in the fibre keeps the air layer stable when the body moves, so a merino layer stays warm at 0 to 10 degrees C where a flat synthetic gives up the air. The 2 properties that decide the fibre, and the ones that carry the whole map, are the micron count of 19 to 21 for merino and the gsm of 100 to 250 for the fabric, and a buyer reads those 2 numbers on the label at any retailer to see which layer wins the cold.
Which retailer to pick for which cold
To pick the retailer, match the cold to the tier, and the 3 matches are the 5 to 9 pound value tier for 0 to 10 degrees C, the 15 to 30 pound mid-range for minus 5 to 10 degrees C, and the 60 to 120 pound premium tier for minus 10 to minus 20 degrees C. The rule is the same at every retailer: the colder it is, the more fabric weight you need, and the more fabric weight you need, the higher the tier, so a buyer in 0 to 10 degrees C buys a 150 gsm synthetic at the value chain, a buyer in minus 5 to 10 degrees C buys a 200 gsm merino at the department house, and a buyer in minus 10 to minus 20 degrees C buys a 250 gsm premium layer at the direct brand store. The map of the retail tiers is the map of the cold, and the fibre on the label is the one number that tells you where you stand.