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Thermal underwear
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Kowloon Warm Base Ltd

Long johns from about HK$40, and mid-range fleece sets around HK$220 in Kowloon. Do you need an everyday set or one for outdoor sport, and what size?

Sha Tin Thermal Outfitters

Merino base layers from about HK$520 for cold walks and outdoor work. What is your size, and do you want a long-sleeve top as well?

Tsuen Wan Winter Wear Co

Heated thermal sets from about HK$940, with the warmth level you choose. Which size and colour do you want, and is your budget in HK$ fixed?

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Thermal underwear in Hong Kong: prices, warmth and what to check

Thermal underwear in Hong Kong costs from about HK$38 for basic long johns to about HK$980 for technical merino sets, and heated sets reach about HK$1,575. These are approximate prices from sellers' websites, November 2026. For an offer that matches your size and warmth level, post a request on BlaBlaPrice.

Approximate prices in Hong Kong, November 2026 (sellers' websites)
TypePrice range
Basic long johns or thermal setHK$40–HK$140
Mid-range synthetic or fleece setHK$220–HK$300
Technical merino or outdoor base layerHK$520–HK$980
Heated thermal setHK$940–HK$1,575

Warmth tests and what to check

The Consumer Council has tested 20 models of thermal daily wear and sports or outdoor wear, and found that their heat retention varies widely. Look at the warmth level and the material in each listing before you pay the top price, because the difference between models is large.

Washing and replacing

Frequent washing reduces the insulating ability of thermal wear, as a local news report on thermal underwear noted. Replace worn sets instead of keeping them for warmth, especially before the cold weeks in December.

Season and when to buy

Winter runs from December to February, and Hong Kong's cold fronts make thermal wear useful in those months. Summer runs from June to August and is hot and humid, when thermal wear is rarely needed. Buy in the autumn so you have sets ready for the cold weeks ahead, and November is a good time to do so.

Sizing, delivery and brands

Many listings come from overseas stores, so check the delivery time to Hong Kong and the return terms before you pay. Ask for sizes in centimetres for chest and waist, and compare the brand's size chart, because sizes differ between makers. Name your district, such as Central, Kowloon, Sha Tin, Tsuen Wan or Tuen Mun, so the seller can confirm delivery.

What to write in your request

Say what you will wear it for, such as outdoor sport, cold weather at home or work outdoors. Name the item (top, bottoms or set), the material, the warmth level, the size, the brand, the colour and your budget in HK$. The more precise the request, the more useful the replies.

Posting a request on BlaBlaPrice is free for buyers. You describe what you need in your own words in a chat, and sellers registered on BlaBlaPrice receive it and reply in the chat with their price and terms. Your contacts stay hidden until you decide with whom to exchange them. Start on the home page, or look at women's underwear and swimwear.

Questions and answers

How much does thermal underwear cost in Hong Kong?

Basic long johns start at about HK$40, mid-range sets are about HK$220 to HK$300, and technical merino sets reach about HK$980, according to sellers' websites, November 2026.

When do I need thermal underwear in Hong Kong?

Winter runs from December to February, and cold fronts make thermal wear useful then. Summer from June to August is hot and humid, so you rarely need it.

Does washing affect how warm thermal underwear stays?

Yes. Frequent washing reduces its insulating ability, so replace worn sets.

Is there a test I can check before buying?

The Consumer Council has tested thermal daily wear and found that heat retention varies between models, so compare the warmth level in each listing.

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