Wholesale enquiry
Since 1924 · Istanbul

Keep the cold out — for a century.

Stay away from the cold with our thermal underwear collection. Smart thermal fabrics lock the heat in, so you stay warm even in the harshest winter conditions.

1924
FOUNDED
Women's thermal underwear set
1924Founded
102 yearsContinuous production
3 generationsFamily craft
Wool, thermal and cotton underwear — from the workbench Hüseyin Küçükaslan founded in 1924 to today's smart thermal fabrics.
Men's wool thermal long johns
About

A century of warmth.

Founded in 1924 by Hüseyin Küçükaslan, Kucukaslan Tekstil company in a short period of time became Turkey's leading brand in underwear clothing.

Manufacturer of wool, thermal and cotton underwear, pajama and boxer types, and interlock cotton-wool fabric. With its employees and executives who have adopted innovation, working without sacrificing customer satisfaction and quality is the fundamentals of the company's understanding of service.

The collection

Thermal from head to toe.

From long sleeves to balaclavas — all our own production, all to the same warmth standard. Samples available for wholesale buyers.

Women's thermal long sleeve set

Thermal Long Sleeve

Women · set

Men's thermal long sleeve t-shirt

Thermal Long Sleeve

Men

Men's thermal short sleeve t-shirt

Thermal Short Sleeve

Men

Men's thermal sleeveless t-shirt

Thermal Sleeveless

Men

Thermal beanie

Thermal Beanie

Accessory

Thermal neck gaiter

Thermal Neck Gaiter

Accessory

Thermal balaclava

Thermal Balaclava

Accessory

Why thermal?

Four rules of the ideal base layer.

Lightweight

Warms without bulky layers — you forget you are wearing it all day.

Comfortable & flexible

Four-way stretch knit never limits movement and feels soft on the skin.

Active fit

Slips easily under a shirt and trousers — invisible from the outside.

Heat balance

Locks body heat in and carries sweat out — never cold, never clammy.

FAQ

Frequently asked questions.

What are the advantages of thermal clothing?

Thermal underwear is a two-piece garment — top and bottom — worn to keep the body warm in wind, fog, sleet or snowy harsh weather. It is normally full length to the ankles with long sleeves to the wrists, and it is worn directly against the skin, trapping body heat to keep you warm. Because the two pieces are independent, you can choose to wear the top or the bottom as needed.

Today there are also short bottoms and sleeveless options: a great way for professionals to stay warm where long sleeves are not practical, and men can wear short sleeve or sleeveless thermals under everyday t-shirts.

Which fabrics are used to make thermal underwear?

Both natural and synthetic fabrics are used to produce thermal underwear. Wool and cotton have long been used for winter clothing because these natural materials hold warmth extremely well; today synthetics such as polypropylene, polyester and nylon are also used. Most thermal garments are made from a blend of natural and synthetic fabrics: 100% natural wool and cotton absorb moisture, while thermal fabric blends trap warmth yet dry instantly — the garment does not stay wet and keeps you warm.

What are the qualities of ideal thermal underwear?

It should be lightweight. It should be comfortable and flexible. It should fit actively, meaning it slips easily under a shirt and a pair of trousers. And it should help regulate body temperature.

Contact

Wholesale enquiries welcome.

For wholesale thermal clothing purchase requests, get in touch — we reply within one business day.

Address
Seyrantepe Mahallesi Yıldız Sokak No: 5
Kağıthane / Istanbul, Türkiye
+90 212 514 80 80 +90 546 886 28 44 bilgi@kucukaslantekstil.com halisyun@gmail.com

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