The HBP Backpack is made simple with a main pocket whose cover you, and can enlarge or reduce according to your needs. There is an additional front pocket that uses a zipper closure. This backpack uses a material that does not easily absorb water with a large enough load capacity. While this backpack dimensions are 47"H (max 61 cm) x 16"W x 29"L with capacity up to 19 liters (closed) and 23 liters (open) and fit TABLET max. 13''. Additionally, our bags are made of 100% high-quality Canvas Bold Polyester and is available in Black, Blue Navy, Stone, and Terracotta.