I dont Believe its very good for that bag. B35 would in good shape a notebook and papers but needless to say will incorporate fat. I will not carry a laptop in almost any of my H bags. I make use of a slim laptop sleeve with a removable shoulder https://walmartbirkinbag81358.blogmazing.com/37218237/why-is-birkin-bag-so-expensive-can-be-fun-for-anyone