Soft, stretchy and 24-hours comfortable, these briefs are made from an Egyptian cotton blend with Outlast® technology and smart stretch. Outlast prevents excess perspiration by reducing overheating so the skin's microclimate remains balanced, while the briefs sport chafe-resistant seams for a smooth feel on your skin. No fly Smooth flatlock seaming designed to eliminate rubbing and irritation 57% Egyptian cotton, 38% Outlast® viscose, 5% elastane Machine wash, tumble dry Made in Portugal