SKU: BB5180
Material: high density nylon
Lining: polyester
Brand: ZMBABY
Hardness: medium
Big size: 45cm*32cm*17cm(for grade 3-6)
Small size: 39cm*30cm*16cm(for grade 1-3)
Big weight: 650g
Small weight: 550g
Color: blue, red, rose
Features: water resistance; burden reduce; comb breathable,back and shoulder protection; 360° side open cover, big capacity, different layers; s-shape strap; 360° reflection strip design, safe at night;