Why fabric matters
Underwear is a high-friction, high-moisture garment.
Dermatology references on textile contact dermatitis point to friction, sweat, tight clothing, dyes, finishing agents, and elastic components as common contributors to clothing-related irritation — especially where fabric sits close to skin all day.
Our practical takeaway: start with simple fabrics, clear labels, breathable construction, and a fit that does not create unnecessary rubbing.
What the research says
Fiber content is only part of comfort.
Textile research on underwear fabrics measures comfort-related properties like air permeability, water-vapor permeability, moisture transport, stretch, recovery, thickness, and fabric structure.
Translation: “cotton” matters, but weave, fit, waistband, finish, and construction matter too.