**Product Specifications:**

**Brand:** yimian

**Color:** Black and white

**Style:** Men's long tube socks

**Material:** Lycra elastic band, Xinjiang cotton

**Features:** Anti-pilling, skin-friendly and soft

**Color Fastness:** Resistant to fading, washing, and sun exposure

**Fit:** Elastic band for comfortable fit without constriction

**Usage:** Suitable for daily wear, pairing with Martin boots, formal photography, leather shoes, sneakers, and matching suits

**Fabric Composition:**

- Combed cotton blend: 65% cotton, 32.6% polyester fiber, 2.4% spandex

- 100% cotton (excluding elastic fibers)

- Classic blend: 97% polyester fiber, 3% spandex

**Size:** One size fits most (39-44)

**Quality:** High elasticity, durable material, reinforced heel, comfortable fit, anti-slip, and abrasion-resistant

**Craftsmanship:** Hand-stitched toe, meticulous sewing, and durable construction

**Certifications:** National Knitwear Product Quality Supervision and Inspection Center, Tianfang Standard Inspection Technology Co., Ltd.

**Testing Standards:** GB/T5713-2013, GB/T2912.1-2009, GB/T7573-2009

**Quality Assurance:** Products meet national quality and safety standards

**Note:** Detailed testing results and certifications are available upon request.