wholesale advertising gift backpack printed logo large capacity colorful small backpack casual and lightweight waterproof backpack

reflective stripe yellow(反光条黄色) reflective stripe orange(反光条桔红色) reflective stripe green(反光条绿色) reflective stripe peacock blue(反光条孔雀蓝) reflective stripe dark blue(反光条深蓝色) reflective stripe black(反光条黑色) reflective stripe wine red(反光条酒红色) 316 pink(316粉色) 316 orange(316桔色) 316 mint green(316薄荷绿) 316 dark blue(316深蓝色) 316 gray(316灰色) 316 dark gray(316深灰色) 316 black(316黑色) 316 dark red(316暗红色)

small size, 10 liters(小号10升) medium size, 15 liters(中号15升) large size 20 liters(大号20升) average size(均码)