Wondrous Item, uncommon (requires attunement)
While you wear this dark coloured cloak with its hood up, you have advantage on Dexterity (Stealth) checks made to hide, as the cloak's magic makes you blend into the background. Pulling the hood up or down requires an action.
The magic of this cloak only works in areas where there are shadows and does not function in bright daylight.
The cloak also has 8 secret pockets sewn into the lining, which can be used to hide small objects in. These pockets cannot be seen by anyone else unless they succeed at an Intelligence (Investigation) check DC:20.
Notes: Advantage: Stealth, Utility, Deception, Outerwear
Personally i'd change the text of "bright daylight" to just "bright light". Daylight in 5e is a very specific thing, like the sun, daylight spell, etc. Basically by the raw wording of this item you would get advantage hiding in a room that could be very well lit, simply for it not being daylight lol.
This seems like a fun alternative to the cloak of elvenkind