APPLICABLE SIZE & MODEL:The 11"-11.6" case is a universal model for MacBook Neo A18 and most 11" MacBook Air/Laptop/Tablet/Notebook/Chromebook. External Dimensions(L x W x H): 12.40" x 8.86" x 0.79"; Internal Dimensions(L x W x H): 12.01" x 8.46" x 0.79". If you especially need a snug fit or a loose fit, please compare the actual dimensions of your laptop with the internal dimensions of the sleeve, and make sure those are smaller than the internal dimensions, the more similar, the more fit. BASIC PROTECTION: As an inner case,outer fabric and Neoprene layer protects against dust dirt debris, scratches and water splash, offers protection against bumps shakes and extrusion when it's put in backpack or suitcase. SMOOTH ZIPPER: Strong top-loading zipper ensures the laptop sleeve will stay closed,smoothly and protect the contents inside perfectly. FASHIONABLE DESIGN: Resistant padded laptop computer sleeve case is perfect for travel and business,personalize your laptop with its own unique style. WARM REMINDER: To choose the right size you need, please read the following instructions in Product Description carefully before ordering. If you have any concerns about the dimensions, please feel free to contact us.

Please check the compatible brands and models below before ordering,to ensure the 11" size sleeve case could fit your laptop.

A. If you have the 11.6 inch Apple MacBook:

MacBook Air 11.6-inch (Model A1370/A1465)---Snug, tailored fit.

B. If you have the 11/11.6/12.3/12.4/12.5 inch Dell, HP, Lenovo, ThinkPad, Acer, Asu_s, Samsung, Surface, Huawei,etc.

ACER: Chromebook 11/311 Series, Chromebook Spin 11/311/511 Series, Spin 1 Series, TravelMate Spin B3 Series, Chromebook 512/712/Spin 512/R 11/R 13 Series, Switch 3/5/Alpha 12(12"),etc.

ASU_S: Chromebook C Series(11.6"), Chromebook Flip C Series(11.6"), E/W Series(11.6"), Vivobook Flip 12 Series(11.6") , Chromebook Flip C Series(12"), ASU_SPRO P Series(12.5"), ZenBook 3 Series(12.5"),etc.

DELL: Chromebook 3100/11 3100/2-in-1 Series (11.6"), Latitude 3000/5000/7000/2-in-1 Series(11.6" & 12.3"), Inspiron 11/2-in-1 Series(11.6"), ,etc.

HP: Chromebook 11 Series, Chromebook x360 Series(12"), ProBook 11 x360 Series, Elite Series(12.3"), Stream 11 Series, Pro Series(12.3"), ENVY Series(12.3"), Spectre Series(12.3"), EliteBook Series(12.5"),etc.

LENOVO: IdeaPad 100e/300e/500e Chromebook Series(11.6"), Ideapad 1 Series(11.6"), IdeaPad Flex 3 Series(11.6"), Lenovo N Series(11.6") , Lenovo Yoga 700 Series(12"),etc.

MicroSoft Surface: Surface Pro Series(12.3"), Surface Laptop go(12.4"), Surface Pro X (12.3"),etc.

SAMSUNG: Chromebook 3/4 Series(11.6"), Galaxy Tab S7+(11"), Chromebook Plus Series(12.2"), Galaxy Book 12" 2-in-1 Series, Chromebook Pro(12.3"),etc.

THINKPAD: Yoga 11e Series(11.6"), 11e Series(11.6"), X280 Series(12.5"), 11e Chromebook Series,etc.

If your laptop is not among these models,or you need a snug fit/a loose fit,please compare the actual dimensions of your laptop with the internal dimensions of the sleeve,and make sure those are smaller than the internal dimensions,the more similar the more fit.