Jeans: TopShop. Sweatshirt: Vintage.
Leather Jacket: Balenciaga (cool alternatives here & here).
Sneakers: Isabel Marant (get the look herehere & here).
Bag: Celine 'Trio'.

The ultimate lazy girl outfit: black on black on black with more black. 

The jeans I'm wearing are possibly my favorite pair. They're the TopShop 'Jamie' skinnies. The fit on these is 'skinny' but with just the right amount of stretch and they have a slightly higher then average waist. I find a high waist to be much more flattering and um... forgiving. Especially post christmas ;)