Black Butterfly brand women’s backpack

This backpack is made of a durable polyester with nylon strap,resin zipper, and smooth sturdy polyester fabric lining. Size:10.1"(L)x 10.1"(H) x3"(W), External dimensions: 10.2"(L)x15.7"(H)x3.1"(W).Canvas strap adjustable range:23.6''-29.3''.This bag is not big, but it's enough for your necessities.