My wife has a Fjallraven Kanken backpack she uses for daily use to work that she likes a lot. They have a specifically sized 13" backpack: https://www.fjallrav

My wife has a Fjallraven Kanken backpack she uses for daily use to work that she likes a lot. They have a specifically sized 13" backpack: https://www.fjallraven.us/products/kanken-13-laptop-backpack https://www.fjallraven.us/products/kanken-13-laptop-backpack MSRP is $110, which is within your budget, and it looks like Amazon has it for $89.