**Product Specifications:**

**Brand:** BEI BI

**Material:** 100% pure cotton, excluding elastic fibers

**Antibacterial Grade:** 7A, anti-mite

**Composition:** 97.1% cotton, 2.9% spandex

**Fiber:** Lycra elastic fiber throughout the sock body

**Compliance:** Exceeds national standard for cotton content

**Certifications:** CITCNRN, TIS, I, CAC, CQC, ISO, MAMA, AL, SGS, BSCI, MRA, CNAS

**Antibacterial Properties:** 7A grade, effective after 150 washes

**Softness:** 45% softer than other brands, gentle on skin

**Antimicrobial:** Resistant to bacteria, even after 150+ washes

**Fit:** Fountain sock mouth, snug without leaving marks

**Durability:** No bone lining, consistent inside and out, resistant to wear and tear

**Safety:** Baby-grade, no fluorescent agents or allergens

**Sizing:** Available in sizes 2, 3, M, L, XL, XXL, XXXL

**Measurement Method:** Place baby's foot on a piece of paper, mark the front and back, measure the length to determine size

**Age Recommendations:** From 0-5 months to over 13 years

**Features:** Environmentally friendly dyeing, high elasticity, no bone stitching, anti-slip heel

**Packaging:** Sealed for cleanliness and protection

**Concerns Addressed:** No leg constriction, no foot sweating, no pilling after friction testing

These BEI BI socks are made of 100% pure cotton, excluding elastic fibers, with a 7A antibacterial grade and superior softness and durability. They are certified by various organizations and are safe for babies and children of all ages. The socks are designed to fit comfortably, resist slipping, and maintain their quality even after multiple washes.