2 In 1 Polo Neck Knitted T-ShirtsFabric Body: 41% Polyester 33% Acrylic 20% Polyamide 3% Wool 3% Silk Rib: 38% Polyester 29% Acrylic 28% Polyamide 3% Wool 2% Silk Except elastic part of edge Collar: 33% Polyester 33% Polyamide 26% Acrylic 3% Wool 3% Elastane 2% Silk Thickness Medium Stretch Fabric Slight Stretch Tips : Washing at lower temperatures and using delicate spin cycles are gentler on garments, helping to preserve their color, shape, and structure. Do not bleach or use