Apple MacBook Pro 13-inch (Retina Display). It's not leather, but shouldn't it be? My current computer got me through my undergraduate work, but I don't think it's got the gusto to get me through my graduate work. If, and only if, you have a spare MacBook lying around, perhaps you could show me how well it fits in the bag!
White Marble - MacBook Pro 13 Inch (13.3) - Soft Touch - Hard Case - Top & Bottom Coverage For Models: A1278, MD101, MD102, MD313, MD314, MC374, MC700, MC724, MB990, MB991, http://www.amazon.com/dp/B01AHK7Y1A/ref=cm_sw_r_pi_awdm_1yBhxb0WBGAQK
Tropical Leaves MacBook Air 13 Hard Case MacBook Air Case 13 Inch Macbook Air Laptop Case Macbook Pro 13 Case Macbook 2016 Leaf Retina Case
TopCase New Design Polar Light Series Silicone Keyboard Cover Skin for Macbook Unibody Whtie 13-Inch / Macbook Pro Aluminum Unibody 13, 15, 17-Inch with or without Retina Display / New Macbook Air 13-Inch / Wireless Keyboard with TopCase Mouse Pad (lavender Spring)