A great addition to your underwear drawer, these socks are comfortable and cosy.,Style: Ribbed trim, Added stretch, Plan A Cotton,Care and composition: Composition: Black and navy- 75% cotton, 22% polyester, 2% elastane and 1% polyamide ,Grey- 53% cotton, 44% polyester, 2% elastane and 1% polyamide, Care instructions: Machine washable, tumble dry