What does breathable mean?
Breathable is an adjective describing materials that allow air and moisture vapor to pass through them, most commonly applied to fabrics, clothing, footwear, and construction membranes. A breathable rain jacket, for example, blocks liquid water from outside while letting perspiration escape, keeping the wearer dry and comfortable. The word carries strongly positive connotations of comfort, health, and quality, which explains its heavy use in advertising and product descriptions. Less frequently, breathable describes air itself that is clean or safe enough to inhale, as in discussions of confined spaces or polluted environments. Formed from the verb breathe with the suffix -able, it entered common usage relatively recently and remains chiefly associated with modern textile technology. Its opposite is airtight or impermeable. Because it signals comfort and well-being, calling something breathable implies that it works with the body or environment rather than against it.
(Of fabric, material, or a surface) allowing air and moisture vapor to pass through so that the skin can breathe.
"Running shoes with breathable mesh uppers help prevent overheating."
Especially common in sportswear and outdoor-equipment contexts.
(Of air) fit, clean, or safe to be breathed.
"The divers carried tanks because the cave air was not breathable."
Less frequent than the material sense; appears mainly in technical or safety writing.
Waterproof-and-breathable fabrics like GORE-TEX, invented in 1969, solved a puzzle once thought impossible: keeping rain out while letting sweat escape.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of breathable
Breathable is formed within English from the verb breathe plus the suffix -able, indicating capability. Breathe derives from the Old English noun brǣþ (breath), whose deeper origins lie in Proto-Germanic roots relating to steam and exhalation. The compound form became widespread only in the nineteenth and twentieth centuries, driven largely by advances in textiles and protective equipment, though earlier ad hoc uses describing respirable air existed. It shares its root with words such as breath, breathless, and breathy.
How breathable is actually used
Predominantly used in technical, commercial, and outdoor-activity contexts, especially in marketing for clothing, footwear, tents, and building materials such as house-wrap membranes. When applied to air, it often appears in safety, diving, or medical contexts.
Easily confused with breathable
Breathless means unable or hardly able to breathe (often from exertion), while breathable describes something through which air can pass or air that can safely be breathed.