Beitais Fetal Sebum Kids Underwear Boys Soft Moisturizing Breathable Boxer Briefs Baby Cotton Antibacterial 4-Pack

Durable against 3680 friction cycles and 300 washes without loss of properties

Temperature stability from -10°C to 43°C

Weakly acidic pH close to baby skin for gentle protection

10A antibacterial grade only in crotch area using third-generation photon broadband antibacterial technology

Breathable, non-sticky, and comfortable for sitting and active movement

Ergonomic one-piece cut with no side seams to prevent skin chafing

Four-way high elasticity fabric for comfort and fit on babies of different sizes

U-shaped small bulb 3D crotch design providing ample growth space without tightness or pinching

Anti-pinch hip design to prevent discomfort during movement

Suitable for long wear, squatting, running, and jumping

Sizes available from 90 to 160 cm with detailed waist, hip, and side length measurements

Size recommendations based on weight and height for ages 2 to 15 years

Recommended by numerous pediatricians and clinical experts

Featured in CCTV parenting science programs and trusted by millions of mothers

Product lines include vernix skin luxury softness series, vernix skin sleeping bags, and homewear

USBettas () children’s underwear integrates patented biomimetic vernix fiber technology with award-winning design and rigorous scientific research. It offers superior softness, antibacterial protection, ergonomic fit, and durability, making it a trusted choice for healthy and comfortable child growth.