What size computers will the laptop sleeve hold?

Tech Specs:

Material:

Helix double box, Helix dual ripstop, 1680D ballistic, 210D nylon oxford 

Volume:

[Total] 3050cu in (50L); [Daypack] 950cu in (16L) 

Dimensions:

[Total]14 x 19 x 15in (36 x 48 x 29cm); [Daypack] 13 x 17.5 x 4in (33 x 44 x 10cm) 

Pockets:

1 Front organizer, internal laptop sleeve 

Backpack Straps:

Yes, on zip-off daypack 

Wheels:

Yes 

Weight:

8lbs 8oz (3800g) 

Recommended Use:

Travel, business trips, road trips, vacation 

Manufacturer Warranty:

Lifetime