You've found a dress you love – but will it feel cool when the thermometer climbs above 25 degrees, or sticky and trapped? The answer is almost entirely determined by the fabric. Best material for a summer dress breathable, wicks away moisture and feels light against the skin, keeping you cool all day long.
In this guide, we rank the coolest and most breathable materials, compare linen, viscose and cotton side by side, and show you which fabrics to avoid in the heat. Below, we answer the most frequently asked questions.
Content
- What makes a material cool?
- The best materials for summer dresses
- Comparison: linen vs viscose vs cotton
- Materials to avoid in the heat
- Color, fabric and fit also matter
- How to care for your summer fabrics
- Our favorites right now
- Frequently asked questions
- Summary
What makes a material cool?
A cool summer material is primarily characterized by good breathability – that is, the ability to let air through and conduct heat and moisture away from the body. Natural fibers are generally better at this than synthetic ones, as they breathe and absorb moisture instead of trapping it. Three properties determine how cool a fabric feels:
- Breathability: how well the air circulates through the fabric.
- Moisture transport: the ability to wick away sweat so that the skin stays dry.
- Fabric thickness: The thinner and airier the fabric, the cooler the garment.
Add to that color and fit – two factors we'll come back to below – and you have the key to a dress that feels comfortable even on the warmest days.
The best materials for summer dresses
Linen
Linen is the king of summer. The material is made from the fibers of the flax plant, which are hollow and therefore transport heat and moisture away from the body exceptionally well. The result is a fabric that feels cool against the skin and breathes better than almost anything else – especially in the heat. The price you pay is that linen wrinkles easily, but many people see the casual, natural look as part of its charm.
Cotton
Cotton is soft, breathable and easy to care for. It absorbs moisture and cools as the moisture slowly evaporates. The trick is to choose thin cotton qualities: voile, poplin, batiste and, not least, seersucker are airy and cool. The thinner the fabric, the cooler the garment. Cotton is also versatile and can be machine washed without any drama.
Viscose, lyocell and tencel
Viscose is made from cellulose from wood and feels silky and cool against the skin. It breathes well, absorbs moisture and has a beautiful, soft drape that makes it popular in dresses – plus it wrinkles less than linen and cotton. Lyocell and tencel are more expensive varieties of viscose with really good breathability. The disadvantage is that viscose is more delicate in the wash and requires gentle handling.
Linen-viscose – the best of both worlds
A linen-viscose blend combines the coolness of linen with the soft drape and reduced wrinkling of viscose. It is often the most practical choice for everyday wear: you get the breathability you want without having to iron the dress every other day.
Hemp
Hemp is very similar to linen, breathes incredibly well and feels cool against the skin. It is often blended with cotton for a softer feel and is a sustainable, if less common, option in the summer wardrobe.

Comparison: linen vs viscose vs cotton
The three most common summer materials all have their strengths.Here is a quick overview to help you choose:
| Material | Cool & breathing | Wrinkles | Care | Best for |
|---|---|---|---|---|
| Linen | Very high | Very | Wash gently, iron damp | The warmest days, relaxed style |
| Cotton (thin) | High | Some | Easy to care for, machine washable | Everyday and versatile use |
| Viscose/lyocell | High, cool fall | A little | Delicate, wash gently | Elegant case, party and everyday |
| Linen-viscose | High | Less than clean linen | Gentle wash | Everyday use, the best of both worlds |
Materials to avoid in the heat
Some materials do more harm than good when it's hot. Polyester and nylon are synthetic fibers made from crude oil – effectively plastic – and they breathe much less well than natural fibers. They trap heat and moisture, which can easily make you feel clammy and stuffy on a hot day. Thick, dense fabrics like denim are also among the hottest in the summer. If you still want to wear a denim look, you can choose a thinner chambray instead. ELLE has a good review of the best and worst summer materials if you want to read more.
Color, fabric and fit also matter
The fabric is most important, but three more details affect how cool the dress feels. The color: Light shades reflect the sun while dark ones absorb the heat, so a light dress will keep you cooler in direct sunlight. The fabric: A thin and slightly looser fabric lets more air through than a dense and compact one. The fit: A loose, airy style allows air to circulate against the skin, while a tight dress fits snugly and retains heat. An airy maxi or wrap dress in linen or viscose is therefore an almost unbeatable summer combination.
How to care for your summer fabrics
Proper care will keep your summer dresses looking good for longer. Linen should be washed gently and ironed while still slightly damp if you want it to be smooth. Viscose is delicate and does best with a gentle wash at a low temperature, preferably in a laundry bag, and should be dried flat to prevent stretching. Cotton is the easiest to care for and can usually be machine washed according to the garment's care instructions. Always follow the care instructions on the garment - and for more tips on fabric care, read Steamery's guide to cool summer materials.

Our favorites right now
Are you looking for a summer dress that feels cool and airy? Here are three lightweight models we highly recommend:
- Floral maxi dress with V-neck – light and airy design, perfect for warm days.
- Midi dress with wrap bodice and ties – sleeveless and cool for summer festivities.
- Lace maxi dress with deep V-neck – airy and elegant for finer occasions.
Find more cool summer models among our women's dresses – with free shipping within Sweden. If you want to know which cut suits you best, you can find tips in our guide on dresses that hide the belly.
Frequently asked questions
Which material is coolest in summer?
Linen is the coolest thanks to its hollow fibers that wick away heat and moisture. Thin cotton and viscose or lyocell are also very cool and breathable options.
Is linen or viscose the coolest?
Linen is the most breathable and coolest in the heat, while viscose feels silky and cool against the skin, has a softer drape and wrinkles less. A linen-viscose blend offers the best of both.
What material should be avoided in the heat?
Avoid synthetic fibers like polyester and nylon, as they don't breathe well and trap heat and sweat. Thick, dense fabrics like denim also get hot quickly.
Is viscose good in summer?
Yes, viscose breathes well, absorbs moisture and feels cool against the skin, making it a great summer material. Just keep in mind that it is delicate and needs to be washed gently.
Why does linen wrinkle so much?
The natural structure of linen fibers means that the material wrinkles easily. To reduce wrinkling, choose a linen-viscose blend or simply embrace the casual, natural look.
Which color of summer dress is the coolest?
Light colors are the coolest because they reflect sunlight, while dark colors absorb heat. A light-colored dress will therefore keep you cooler in direct sunlight.
Summary
The best material for a summer dress in the heat is one that breathes and wicks moisture away. Linen is the coolest of all, thin cotton is versatile and easy to care for, and viscose gives a cool, elegant drape – while a linen-viscose blend combines the best. Avoid synthetic fibers like polyester, choose light colors and an airy fit, and you’ll stay cool and comfortable all summer long.
Ready to find your coolest favorite? Explore our women's dresses.

