Both of those are sharp guys... not a bad look at all. For me, personally, I need color. But, we're talking about you! LOL
I like that the white in the shoes is stuff you can hit with a bottle of white shoe polish. This shit is absolutely worth it.
https://www.amazon.com/KIWI-Sport-Shoe-Whitener-4-0/dp/B000UDEBMA/
Keeping it clean is actually not too bad, I just use a tiny bit of very mild soap and a lightly damp microfiber cloth (the automotive type, they're nice and big) then dry with a microfiber.
The issue with the white magic keyboard for me has been discoloration. Over time it turns a very slight yellow color, or at least mine does (non-smoker, I keep it clean, just seems to happen over time). I use shoe whitener to bring back that really nice white luster.
KIWI Shoe Whitener | For Leather, Vinyl, Canvas, Nylon and More | 4 Fl Oz | Includes Sponge Applicator https://www.amazon.com/dp/B000UDEBMA/ref=cm_sw_r_cp_api_i_fWgLFb8Q9J3Z6
Also, this stuff works great for any stains or spots you may get after some wear to the spray/beeswax
I have heard really good things about Kiwi whitener I am not saying buy from here but this is one of the first links I found to it just by googling. Many other people pain their boost but I heard that can take a bit of time. Good luck
Seriously though, try this..
Take laces out and soak in a mix of 1/4 bleach 1/4 dish soap and 1/2 water for 24/48 hrs then remove and scrub by hand and rinse under running water until white.
Use a soft brush and dish soap/water and scrub the shoes clean being careful around peeling parts. Let dry completely
use glue and try to glue down the peels so it doesn't look too bad.
Once their as clean as they will get, if possible, get some white shoe polish... I would use THIS for the soles and then I would use .THIS. for the uppers/rest of the shoe.
You can always repaint them too if you want. You can have them restored to DS condition if you want also.. It basically comes down to how much money you wanna spend.
This stuff works: KIWI Shoe Whitener, White, 4.0 oz (1 Bottle with Sponge Applicator)
Use a wet magic eraser sponge on the sole and leather. Use this on the tongue, fabric on the back, and laces
https://www.amazon.com/KIWI-Sport-Shoe-Whitener-4-0/dp/B000UDEBMA
Use soap and water or and sneaker cleaner.
As far as if your boost is yellowing you will need to paint over it to do that you need to Get angleus leather paint Put thin coats drying with a hair dryer in between coats Use a finisher
Another method I have see used on white boost is to use a sneaker paint pen (https://www.amazon.com/KIWI-Sport-Shoe-Whitener-4-0/dp/B000UDEBMA) Just an example ^ And you can just use that on the boost