YOYOSHome Anime Cosplay Noctilucence Rucksack Messenger Bag Backpack School Bag After absorbing light, the color of the logo will change in the evening as the first picture shown. Material: Super high quality durable Nylon fabric Dimensions: length 13'' * height 17.3'' * width 5.9'' Normal the shipping time is about 7 to 14 working day to US by USPS KINDLY REMINDER:We will send you a shopping bag of our store's Logo together with this anime backpack as a gift for you, You can refer to the last picture.