Toshiba Envoy Laptop Carry Case (for up to 15.4" notebboks) - £15.98 or less delivered
Model TP09CC-NYL, this is the cheapest price I could find. Go through Quidco for 2.5% cashback.
Discreet and protective. Provides plenty of room for your documents and accessories. Use with SATELLITE PRO A60 L10 M30 PORTEGE R100 R200 S100 M100 A200 M200 M300 TECRA M2 M3 M4 A2 A3 A4 A5 LIBTRETTO U100 QOSMIO F10