CNET también está disponible en español.
Don't show this again
The leather cases on the LG G4 were "vegetable tanned," which means they were lathered with vegetable dye to help the leather withstand humidity.
LG said it only used high-quality cowhides, which it said has 0.001 micrometer (one millionth of a meter) pores that allowed the leather to "breathe."
The company said the leather ventilates well and won’t spoil from long use.
A process called "edge coating" was also used, which prevents the leather fraying at the edges. This helps guard against minor scratches as well as damage from water splashes.
Each leather back covers takes 12 weeks to produce, over 10 times longer than the four days for non-leather case counterparts. It's the same process used to prepare leather for luxury goods.
The stitching on the rear casing is done with Mara-brand threading made by Germany's 150-year-old thread manufacturer, Gutermann.