Chargerstore on eBay has just listed several new prototype Nike colors!
38/40/41/42mm:
Burgundy Crush/Black
For 1piece Nike+ sport band(SM & ML straps included). Rare prototype, engineerng band. Not known the official color name yet(look like Black/Hyper Jade). Experienced customers are most welcome. Photo#9~ #12 are for color comparison purpose only. 100% Original Apple/Nike sport band. Pls check...
www.ebay.com
Light Bone/Black (!)
Vintage Lichen/Spruce Fog
Flat Silver/Cool Gray (I think)
Midnight Navy/Chlorine Blue
Tropical Twist/Teal Tint
42/44/45/46mm:
athousandbands and I think this could be Flat Silver/Apricot Agate
Cool Gray/Wolf Gray
Black/Hyper Jade
Those interested in buying should probably email him directly for a better deal, but as per forum rules I don't think I can share the email here. Chargerstore is reputable and trusted by several forum members here who have bought from him countless times, and he's also
made the news previously for having a few airtag holder prototypes.