18M, entering uni soon and looking to replace the Osprey kids' pack that I've been using for the past 9 years.

I'd like a backpack that's able to carry a 14 inch laptop, a textbook or two, a jacket, an umbrella, a water bottle... A laptop pocket and side pouches for water bottles are preferable but not a must.

Budget approx. 500-700 HKD (64-90 USD). Looking into getting a Jansport Right Pack (with the reinforced bottom), but I'd like to hear your recommendations.