new children's spine protection schoolbag primary school student large capacity burden alleviation backpack grade 1-6 men's and women's waterproof backpack

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material: oxford cloth

function: ultra-light, wear-resistant, expansion, burden reduction, spine protection

applicable school age: grade 1-6

applicable gender: neutral/both men and women

lining texture: polyester

bearing system: physiological curve backplane

brand: top bear

item no.: z2301-02

style: modern fashion cool

pattern: solid color

popular elements: contrast color

color: large size tibetan powder, large size dark red, large size dark blue large size dark green

have authorized private brands: no

year and season of release: spring 2026

applicable scenarios: school education

type of packaging: basic packaging

Update time：20260727180515