Can Mosquitoes Bite Through Jeans? (What Fabric Can Mosquitoes Not Bite Through?)

Can Mosquitoes Bite Through Jeans?

Mosquito bites are a nuisance, but it’s the diseases they carry that can be deadly. If you live somewhere with mosquitoes and you’re concerned about getting bitten, what you wear can make a difference.

A pair of jeans is a good barrier against mosquitoes — but it’s not perfect. It’s not as easy for mosquitoes to bite through jeans as it is a tank top or t-shirt, but they definitely can bite through them!

When mosquitoes bite, they inject saliva. This is how they dissolve your skin so they can suck up the blood. The saliva also prevents your blood from clotting so that it can feed for as long as possible.

When mosquitoes bite through material that is tight against your skin, like jeans or shorts, it’s harder for them to get their mouthparts through. They will still try to pierce the material to find a gap in order to get their mouth into your skin, but if there isn’t enough room for their proboscis, they most likely won’t be able to bite you.


Do Jeans Prevent Mosquito Bites?

So yes, mosquitoes can bite through jeans. However, tight jeans can provide some relief from mosquito bites by preventing them from piercing the skin as easily. Also, if you’re wearing loose clothing when mosquitoes are around and they do manage to bite you anyway, they are more likely to go through the fabric and not into your skin.

The answer is YES and NO. Denim does protect against mosquito bites, but only because mosquitoes don’t like the smell of it. The reason is that mosquitoes can pick up carbon dioxide in the air from animals and humans.

They use this scent to track their prey. But when they smell carbon dioxide trapped in clothing made of synthetic fibers, they are likely to avoid them too.

But this doesn’t mean you can wear only denim and no longer be bitten by mosquitoes. It just means that if you wear only denim, you will not be bitten as much as you would if wearing other clothes like cotton or polyester.


What Fabric Can Mosquitoes Not Bite Through?

Mosquitoes are attracted to dark colors, especially blue and black. So when you’re choosing a new piece of clothing, make sure it’s light-colored. Or, if you have to wear darker clothes, at least wear socks or tights that match the color of your pants or skirt.

  1. Tight-knit and smooth fabrics repel mosquitoes best. They are less likely to bite through such fabrics as cotton and polyester. However, the tighter the weave is and the smoother the material, the more expensive it will be.
  2. Fleece is good for keeping mosquitoes away because it is insulating and holds body heat well. Some fleeces use special fibers from plants to keep bugs out.
  3. Silk is also an effective mosquito repellant because it doesn’t absorb sweat readily and so keeps the skin dry. Wear loose-fitting clothes made of these materials on vacations in areas where there are many mosquitoes, and keep your arms covered as much as possible to discourage bites.
  4. Wool is another great fabric for repelling mosquitoes because it rarely gets wet with sweat when you’re hiking or camping outdoors in summer weather. It also absorbs odors well and dries quickly.

How Do Mosquitoes Bite Thru Jeans?

Trying to understand why mosquitoes bite through jeans is an interesting question, but the answer may surprise you. The fact is that mosquitoes can bite through jeans and they will bite through anything that gets in their way.

The reason they can bite through jeans is that mosquitoes have very sharp mouthparts. They also have very strong proboscis muscles that are attached to these mouthparts.

When a mosquito bites, it uses its probosci’s muscles to pierce the skin of its victim and then injects saliva which contains enzymes that help break down the victim’s tissue so that the mosquito can feed on the blood.

Mosquitoes are able to fly in a very controlled manner because of this setup. Once the mosquito pierces your skin, it can move around your body and feed on you until it has had its fill of blood, then it will leave without causing additional harm to you or anyone else.


In summary, tougher fabrics like denim are normally resistant to most biting insects. In fact, some heavy fabrics can withstand the attacks of all but the biggest flying pests. But not so with mosquitoes. The very way mosquitoes feed — using a serrated-blade mouthpart called a proboscis — renders them unable to pierce through the dense fabric, like denim.

How do mosquitoes then go about biting thru jeans? The secret lies in their saliva! They secrete an enzyme that acts as an acid bath, effectively dissolving holes in the fabric large enough for their mouthparts to penetrate and drink the blood underneath.

This is what lies behind the phenomenon of mosquito bites appearing on your skin after you’ve worn clothing that has been exposed to mosquitoes feeding on other people or animals.

You may also be interested in… What Jeans Should You Wear for Your Body Type? and What Pants to Wear with Denim Shirt?