A microfiber bra is a women’s bra made from ultra-fine synthetic fibers — usually polyamide blended with elastane — that create a smooth, lightweight, second-skin fit. Microfiber is the go-to bra fabric when you need an invisible line under fitted clothing, with no visible texture or seam showing through thin tops.
This collection covers our women’s microfiber bra range across cuts and support levels. Padded microfiber bras give the smoothest line under fitted t-shirts, blouses, and dresses — the foam cup adds shape while the microfiber fabric stays invisible against the skin. Soft cup microfiber styles read more relaxed and unstructured for everyday wear. Most pieces include adjustable straps and standard hook-and-eye closures.
Are microfiber bras good for invisible wear under fitted clothes? Yes — microfiber is the most invisible bra fabric under tight or thin clothing. The smooth surface has no texture to show through, and the molded cups of padded microfiber styles sit flat without seams or stitching that telegraph through the outer layer. For a fitted t-shirt, midi dress, or thin knit, microfiber is the safest choice.
Is microfiber breathable enough for warm weather? Microfiber is less breathable than cotton, but it’s moisture-wicking — the fine fibers pull sweat away from the skin and dry quickly. For warm-weather daily wear, it works as long as the bra band isn’t too tight. In extreme heat, cotton is still the more comfortable choice for prolonged wear.
What’s the difference between microfiber and cotton bras? Cotton is softer against the skin and more breathable, ideal for daily wear and sensitive skin. Microfiber is smoother and more form-fitting, designed to be invisible under fitted clothing. Many women keep both in rotation: cotton for everyday, microfiber for tighter outfits where line-free dressing matters.
How do I wash a microfiber bra? Machine wash cold on a gentle cycle inside a mesh laundry bag, with the hooks fastened. Skip fabric softener — it coats the fibers and reduces moisture-wicking properties. Hang or lay flat to dry; skip the dryer to preserve the elastic and the cup shape.

































































































