A couple years ago Pocket-lint got to check out Adidas' prototype football boot, its adidas zx flux which weighed, you guessed it, 99 grams. Now the company is ready to release a pair as part of its "Limited Edition" footwear range.
They will only be available in "super-limited" quantities from 15 April, with just 299 pairs being made for sale around the world for 299 euros each. And you'll have to be a specific foot size to wear them - the adidas zx 750 boots will only come in UK size 8.5.
Regardless of the unbelievably light weight for each boot, they are extremely strong and include a 1mm polyamide outsole with professional quality rigidity. The upper layer is made from a woven polyester mesh, which will never take on water so keeps its weight in all weather conditions. And there is a unique stud layout to ensure "fastest possible movements in all directions".
The boots have already been tested by superstars including Karim Benzema and adidas zx 750 femme , and while there's every chance you'll miss out on a pair (or have feet too big or small for them) the technology will no doubt be utilised for future boots from Adidas.
We'd like to see other boots with similar weights in future, after all at adidas zx 700  a boot they are lighter than many of the new gadgets we've seen recently.
So for context, here are five we know of that are heavier than an Adizero 99g boot.