Partial 15.6″ laptop are not fit to 15″ bag , and you can choose 17″bag.
Dell:Alienware 15, Inspiron 3000,5000,7000,etc
Lenovo: Y series Z501 G50 S500 FLEX 15,etc
Acer: Aspire E5, etc
Asus: n53,n55,A56,E56, etc
Measurements and Sizes
Exterior: 17.2″(l) x 12″(w) x 1.5″(h)
Interior: 16.5″(l) x 11.2″(w) x 1.18″(h)
Note ：This case is water resistant but not water proof, and You can expect the water to stay on the surface for a while until it actually soaks through, but don’t try to soak it in water
Water-resistant neoprene material offers a lightweight design and superior protection. Protects laptop/netbook from dust, shocks, bumps, scrapes and scratches & spills.
Slim-line and light weight design allows this case to be carried solo or fit in your favorite bag.
Special design:A little zipper at the corner so you can charge your computer while it’s in the case..Inner bag design for storage of small items such as power adapters, cables, pens, notepads, and cell phones, offering added convenience.
High quality zipper puller and “u” zipper design is easy to put the laptop into the sleeve.
Dimension Interior: 420m(L)x285mm(W)x30mm(H) The dimension of 15.6”laptop is smaller than the dimension 383 x 255 x 32mm and can use 15.6″ bag, but if you also pack power supply, mouse inside or the 15.6″laptop with bigger size, you should choose 17″ bag