Prolonged exposure to warm laptops can cause erythema ab igne (EAI)—also called Toasted Skin Syndrome or Granny’s Tartan—a blotchy, chronic skin condition that is in rare cases associated with some cancers. We do not recommend using any gaming laptop on your lap for long periods of time, as the undersides of all the laptops we tested regularly measured over 43 °C (109 °F) (the threshold for EAI) during even short gaming sessions.
Dell Home, via its Member Purchase Program, offers its Dell 15.6" Laptop Gaming Backpack in Black/Red for $28.49 with free shipping. That's tied with our expired mention from four days ago as the lowest price we've seen for this bag. (It's the best deal we could find now by $20.) It accommodates laptops with up to 15.6" screens and features a shock-absorbent EVA molded front shield, adjustable shoulder straps, and a deployable rain cover.