[HackD]

A lot of the cheap replica FAST knock-offs are sized Asian .. meaning that they are very ill-fitting for comparatively fat Caucasian gourds.

The padding 'systems' most often, also leave something to be desired.

I have one of Huang's (airsoftdepot) first round of FAST helmets - the 'deluxe' model that wasn't the cheapest... but it certainly had some cheap components.

I ended up having to replace the chin-strap/head adjustment assembly with a better quality and longer strapped version as per a post-purchase "warranty" replacement deal, which made it marginally more wearable (i have a long face AND a fat head), and mix and matched/modified the supplied helmet pads to offset the 'asian' sizing issues of it. No issues with the rails/fittings on the helmet itself - everything seemed to work well enough/within spec enough in that department.

It's essentially just sat on a shelf since then. I found that a replica MICH helmet purchased overseas fit far better, and offered better coverage protection overall. I also ended up replacing the chin-strap/webbing for better quality on this one. May not be the latest and greatest that airsoft Fashionista's desire, but function over form in my books.