People who shop for “bite-proof clothing” often do so with a simple goal: avoid getting bitten outdoors. Generally speaking, truly bite-proof clothing is uncommon in lightweight everyday apparel.
For outdoor use, the more accurate term is usually insect-repellent clothing or permethrin-treated clothing. These items can help reduce contact with mosquitoes, ticks, and other biting insects, but they should not be treated as a guarantee against every bite.
Instead of looking for clothing that is fully bite-proof, it’s better to look for clothing that combines coverage, comfortable fabric, good fit, and permethrin-repellent treatment as part of a layered approach.