LangSha Boys' Plus Size Thermal Underwear Set Autumn Cotton Long Johns for Big Boys and Teenagers

Four-needle six-thread craftsmanship ensuring no foreign body sensation

Suitable for sleepwear, loungewear, and base layer wear

Meets GB31701-2015 safety technical specifications for infant and children textile products (Class A)

Tested for 300 washes maintaining antibacterial effect

Far-infrared performance and evaluation compliant with GB/T30127-2013

Knitted infant and children clothing first-class product standard GB/T39508-2020

Plus-size ergonomic design tailored for chubby children

Comfortable fit with moderate thickness and softness

Sizes available for heights 140cm to 180cm, weight range 70-170 jin (35-85 kg)

Size charts include garment length, chest circumference, waist circumference, and pants length

Recommended to select one size larger for loose fit or chubbier children

Styles include color-block shoulder sleeves, striped raglan sleeves, and cartoon prints with elastic wide waistband to prevent tightness and discomfort

Ideal for sensitive skin and chubby children

Promotes comfort, warmth, and breathability to prevent skin irritation and sweating issues

Due to batch and style differences, flat measurements may vary by 1-3 cm, which is normal

Designed with attention to detail to ensure comfort and ease of wear for children