{"product_id":"nike-14","title":"Nike Alphafly 3 –Prototype White FD8356-100","description":"\u003ch2\u003eBefore the Record. Before the Release.\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eNike Alphafly 3 \"Prototype\"\u003c\/strong\u003e in White \/ Black \/ Total Orange is a rare, collector-grade colorway that references Nike’s internal sample and testing culture — a shoe that looks like it came straight off the development bench before a world record attempt. The handwritten prototype number on the midsole is not a design detail. It’s a document.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhite \/ Phantom Atomknit 3.0 upper\u003c\/strong\u003e — Nike’s most advanced racing knit in a clean, slightly ghosted off-white that carries a subtle shimmer and translucency at race weight — the kind of upper that disappears on your foot and lets the midsole carry the visual story\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack reflective gradient Swoosh\u003c\/strong\u003e — a dark, metallic-finish Swoosh that transitions from deep black at the base into a reflective grey shimmer — a premium racing detail that catches artificial light mid-stride and signals the shoe’s elite intent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack heel collar\u003c\/strong\u003e — a dark interior trim that frames the ankle entry with a sharp contrast against the white upper, referencing the monochrome precision of Nike’s prototype testing aesthetic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandwritten \"20820-4\" sample code on the midsole\u003c\/strong\u003e — a prototype development number written directly onto the cream ZoomX foam in black ink — the defining detail that transforms this from a colorway into a collector’s artifact. A reference to the internal sample designation from Nike’s performance lab\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCream \/ Sail ZoomX foam midsole\u003c\/strong\u003e — an oversized, voluminous midsole in warm off-white with Nike’s most energy-returning foam compound — the same geometry that has powered marathon world records, in the raw, unfinished tone of a shoe that hasn’t been through final colorway approval\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Orange to Red gradient forefoot Air Zoom pod\u003c\/strong\u003e — a vivid red-to-orange Air unit glowing at the front of the midsole — the one burst of saturated color on an otherwise stripped-back prototype build, marking the point of maximum impact with maximum energy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-length carbon fiber plate\u003c\/strong\u003e in the ZoomX stack for elite propulsive efficiency at any pace, on any race day\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eMost shoes are made to be worn. This one is made to be studied. The Nike Alphafly 3 Prototype is for collectors and competitors who understand that the most interesting version of a shoe is always the one before it was finished.\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eNike Shoe Size Guide\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eEU Size\u003c\/th\u003e\n\u003cth\u003eUS Men's\u003c\/th\u003e\n\u003cth\u003eUS Women's\u003c\/th\u003e\n\u003cth\u003eUK Men's\u003c\/th\u003e\n\u003cth\u003eUK 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