A thermal suit for men is a thin, stretchy top and bottom worn under your normal clothes to keep body heat in. In Pakistan it is the easiest way to stay warm in Lahore fog, Islamabad nights and the north without wearing a bulky jacket all day. Choose a soft cotton blend with good stretch and a snug fit, and wear it as your first layer.
Last updated: November 2026
This guide explains what thermal wear is, who needs it in which city, how it should fit, how to wear it under shirts, kurtas and jeans, and which Ivar Clothing thermal and compression sets are in stock now.
Key takeaways
- Thermals trap a thin layer of warm air next to your skin, so you need fewer heavy layers on top.
- A thermal should fit close to the body. If it hangs loose, it keeps you less warm.
- White thermals sit best under light shirts and kurtas, and black under dark clothes.
- Most of Karachi does not need thermals. Lahore, Islamabad and the north get the most use from them.
What is a thermal suit?
A thermal suit is a matching top and bottom made from a soft, stretchy knit that sits close to the skin. It is worn under regular clothes as a base layer. In Pakistan it is also called a body warmer, a warmer suit or a thermal inner.
Thermals work by holding a thin layer of warm air between your skin and the fabric. Because it is close-fitting and thin, it adds warmth without making your shirt, kurta or jeans look bulky. You can buy the full set or just the top or bottom, depending on where you feel the cold most.
Do you really need thermal wear in Pakistan?
It depends on your city and your day. In Karachi most men do not need thermals. In Lahore and central Punjab they help on foggy mornings and nights. In Islamabad, the north and on trips to the mountains, a full thermal set is one of the most useful winter pieces you can own.
| Where and when | Do you need thermals? | What to wear |
|---|---|---|
| Karachi and southern Pakistan | Rarely | A thermal top on the coldest nights or for travel north |
| Lahore, Faisalabad and central Punjab | Often, in December and January | A thermal top for fog and early mornings, a full set for late nights |
| Islamabad and Rawalpindi | Yes, most of the winter | A full thermal set under daily clothes |
| Northern areas and mountain trips | Yes | A full set under fleece and a jacket |
| Bike riding and early commutes | Yes, in most cities | A thermal top and bottom under your outer layer to block wind chill |
Which fabric is best for thermal wear?
A cotton blend with stretch is the most practical choice for Pakistan, because it feels soft, breathes in heated rooms and moves with you. Pure synthetics can feel sweaty indoors, and wool is warmer but can itch and costs more.
- Cotton blends: Soft and breathable, comfortable for all-day wear at the office or university.
- Microfiber and viscose: Add stretch and a smooth feel, and help the garment keep its shape.
- Pure polyester: Light and quick-drying, but can trap sweat when you go indoors.
- Wool and fleece-lined thermals: Warmest, but heavier and better suited to very cold places.
Ivar Clothing's thermals and compression inners use 40% cotton, 40% microfibers and 20% viscose with super stretch fabric, which balances warmth, softness and stretch for Pakistani winters.
Which thermal sets does Ivar Clothing have in stock?
Ivar Clothing has two thermal ranges: smooth Short Length Thermals in white and black, and Ribbed Compression inners and bottoms in white and black. Both use the same 40% cotton, 40% microfibers and 20% viscose super stretch fabric, priced from Rs. 1,950 for a single piece to Rs. 3,850 for a full set.
| IVAR style | What you get | Colors | Sizes listed | Price |
|---|---|---|---|---|
| Short Length White Thermal Suit | Top and bottom set | White | M, L, XL | Rs. 3,850 |
| Short Length Thermal Top | Top only | White | M, L, XL | Rs. 1,999 |
| Short Length Thermal Bottom | Bottom only | White, black | M, L, XL | Rs. 1,999 |
| Ribbed Compression Inner | Top only, ribbed texture | White, black | M, L, XL, XXL | Rs. 1,950 |
| Ribbed Compression Bottom | Bottom only, ribbed texture | White, black | M, L, XL, XXL | Rs. 1,950 |
| Ribbed Compression Suit | Top and bottom set, ribbed texture | White, black | M, L, XL, XXL | Rs. 3,800 |
Stock changes by color and size, so check the product page before you order.
Short Length Thermal Suit
The IVAR Short Length White Thermal Suit (Rs. 3,850) gives you the top and bottom in one set. It uses a soft, breathable cotton blend with natural stretch for a close fit. If you only feel the cold in one place, buy the IVAR Short Length White Thermal Top or the IVAR Short Length White Thermal Bottom (Rs. 1,999 each) on their own.
What does Short Length mean? It means the set is cut as close-fitting inner wear. The top sits fixed to the body, and the bottom ends just above the ankle, so it stays hidden under trousers and does not bunch inside your socks.
Ribbed Compression inners and bottoms
The IVAR Ribbed Compression Inner Black (Rs. 1,950) has a ribbed texture and a close, compression-style fit, made for seamless layering. It also comes in white, with matching bottoms in white and black. The range is listed up to XXL, which helps if the Short Length Thermals are too snug.
How should thermals fit?
A thermal should sit close to your skin everywhere, with no loose fabric at the waist, back or knees. It should feel snug but never tight enough to leave marks or limit movement. Sleeves and legs should end cleanly without bunching.
- Chest and back: Close to the body, so warm air stays trapped.
- Waist: The bottom should stay up without a belt and not roll down when you sit.
- Sleeves and legs: Smooth along the arm and leg, without bunching under cuffs or socks. IVAR's Short Length bottoms end just above the ankle for this reason.
- Between sizes: Go for the size that lets you sit and bend comfortably, especially if you will wear it all day.
For measuring tips, read our complete men's clothes size guide.
How do you wear thermals under everyday clothes?
Wear the thermal as your first layer, then dress normally on top. Choose white under light shirts and kurtas and black under dark clothes, so nothing shows through. Take off outer layers indoors instead of the thermal.
- Office: A thermal top under a formal shirt, with a sweater or blazer on colder days.
- Shalwar kameez and kurta: A white thermal top and bottom under a light kurta for weddings and evening functions.
- Jeans and casual wear: A thermal bottom under jeans or pleated trousers, with a hoodie or quarter zip on top.
- Bike and early commutes: A full thermal set under your jacket blocks the wind chill that hits hardest on the road.
- Travel north: A full set under fleece and a jacket for Murree, Naran or Skardu.
For the rest of the layers, see our guide to winter clothes for men in Pakistan.
What mistakes should you avoid with thermals?
- Buying a size too big, which lets cold air in and reduces warmth.
- Wearing a white thermal under a dark see-through shirt, or black under white.
- Adding a thermal and then a heavy jacket in a warm office, which leads to sweating.
- Wearing the same set for days without washing, since it sits next to the skin.
- Expecting a thermal alone to replace a jacket in Islamabad or the north.
How do you wash and care for thermals?
Ivar Clothing's thermals and compression inners can be machine washed and machine dried. Do not use bleach and avoid ironing, which can damage the stretch fabric. Wash them often, because they are worn next to the skin.
- Machine wash with similar colors, keeping whites separate.
- Do not bleach, even white thermals.
- Avoid ironing to protect the stretch.
- Own two sets so you can rotate them through the week.
- Always check the care label on the specific product.
What Should You Wear Over a Thermal Suit?
A thermal suit works best under a warm middle layer. A fleece quarter zipper such as the IVAR Navy Yacht Fleece Quarter Zipper (Rs. 3,850), or a heavy fleece hoodie such as the IVAR Brown Culture Heavy Fleece Hoodie (Rs. 5,500), keeps you warm without bulk.
For bottoms, wear the IVAR Black Side Panel Heavy Fleece Pants (Rs. 4,250) or jeans over thermal bottoms. See the winter undergarments collection for thermal suits.
Frequently Asked Questions
What is the difference between a thermal suit and a body warmer?
In Pakistan they usually mean the same thing: a close-fitting top and bottom worn under clothes for warmth. Ivar Clothing's product descriptions call its thermals "warmers", and they are sold as a set or as separate tops and bottoms.
Are thermals enough on their own in winter?
No. A thermal is a base layer and works best under your normal clothes. In Lahore a thermal under a shirt and sweater is usually enough, while Islamabad and the north also need a jacket on top.
What size thermal should I buy?
Buy the size that fits close without feeling tight. IVAR's Short Length Thermals are listed in M, L and XL, and the Ribbed Compression range goes up to XXL. Compare your chest and waist with the size chart before ordering.
Should I choose a white or black thermal?
Choose white under white or light shirts and kurtas, and black under dark clothes and jeans. Ivar Clothing makes both colors in its Ribbed Compression range.
Can I sleep in thermals?
Yes. Many people sleep in a thermal top and bottom on very cold nights. A soft cotton blend, like the one IVAR uses, feels more comfortable overnight than pure synthetic fabric.
How much does a thermal suit for men cost at IVAR?
The IVAR Short Length White Thermal Suit is Rs. 3,850 and the Ribbed Compression Suit is Rs. 3,800. Single tops and bottoms cost Rs. 1,950 to Rs. 1,999. Orders over Rs. 2,500 get free delivery across Pakistan, and you can pay in 3 installments with BaadMay.
Where can I buy thermals for men online in Pakistan?
Ivar Clothing is a Pakistani menswear brand based in Karachi, focused on quiet luxury and old money-inspired basics. Its thermal sets, tops and bottoms and Ribbed Compression inners are available online at ivarclothing.com in the Winter Undergarments collection. Unused items with tags can be exchanged within 15 days (sale items excluded).
What should I wear over a thermal suit?
A fleece quarter zip, sweater or hoodie on top and jeans or fleece pants on the bottom. Add a jacket for outdoor cold.
How do I find products in my size on the IVAR website?
Open any collection page and use the size bar at the top. Tap Size, then choose your size, such as M, L or 32, and the page shows only the products available in that size.
Which thermal should you buy first?
If you live in Islamabad or travel north, start with a full thermal set. In Lahore, a thermal top is often enough, with a bottom added for late nights. Pick white for shirts and kurtas, black for jeans and dark clothes, and buy two so you can rotate them.
Related Reading
These guides cover the rest of a winter wardrobe:
- Winter Clothes for Men in Pakistan: Complete Wardrobe Guide
- Winter Bottoms for Men Pakistan: Mens Winter Fashion Guide
- Men's Undergarments Guide: Boxers, Briefs, and Vests
- Men's Sweater Guide for Pakistan's Winter: Fit and Fabric
- Top Winter Jackets for Men: Preparing for the Chills
