AI Appraisal Estimate

AI-generated estimates · not official valuations

From the user

What was submitted

Photo and notes provided by the user — not generated by AI

Submitted item photo
Submitted photo · June 30, 2026

User's notes

Michael Phenix Jr sonic

AI analysis below

AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

Everything below is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

Note

This analysis also relies on unverified notes provided by the user, which may be incomplete or inaccurate and could affect the result.

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AI Identification

·Not independently authenticated·Verify before acting

Michael Penix Jr. Signed Phenom 'Shadow the Hedgehog' Custom Football Cleat

Sports Memorabilia / Autographed Athletic Footwear

AI Estimated Value

·Not an official valuation·Verify before acting

$450 - $650

As of June 30, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This item is a single right-foot football cleat manufactured by Phenom, featuring a high-performance design with a vibrant red and black color scheme. The cleat is constructed with a synthetic upper, featuring a gradient honeycomb mesh pattern near the ankle and a smooth red toe box. It is uniquely decorated with graphic illustrations of the character Shadow the Hedgehog from the Sonic series, positioned on the outer lateral side. A significant value-adding feature is the hand-signed autograph in black ink across the toe box, attributed to NFL quarterback Michael Penix Jr., including his jersey number '#9'. The signature appears bold and clear against the red material. The cleat includes flat black and white patterned laces and a red pull tab on the tongue printed with 'PHENOM SPEED'. The item appears to be in new, unworn condition, evidenced by the original 'PHENOM' hangtag still attached and a protective plastic film wrap covering the front half of the shoe to preserve the signature and material. The stitching and bonded overlays indicate high-quality modern athletic craftsmanship and customized aesthetic modifications intended for the collector market.

AI Appraisal Report

·AI can make mistakes·Verify before acting
I have conducted a visual examination of this Michael Penix Jr. signed custom Phenom cleat. The item exhibits excellent condition; the synthetic upper, 'Shadow the Hedgehog' graphics, and structural integrity appear 'as-new.' The signature, rendered in black ink on the toe box, is bold and clear, featuring his distinctive '#9' inscription. Market demand for Penix Jr. memorabilia is currently high following his high-draft status and collegiate success at Washington. Custom-themed cleats (Sonic/Shadow) represent a niche '1-of-1' or limited-batch crossover market that appeals to both sports collectors and pop-culture enthusiasts, often commanding a premium over standard equipment. Comparables for signed cleats from top-tier rookie quarterbacks typically range from $300 to $800 depending on the uniqueness of the design. The specific use of the Phenom brand and the protective film wrap suggest this was a curated promotional or limited-release item, adding to its rarity. Important Limitations: This appraisal is based solely on digital images. While the signature characteristics align with known Penix Jr. exemplars, I cannot definitively verify ink depth, pressure, or authenticity without a physical inspection or a certificate from a reputable third-party authenticator (JSA, PSA/DNA, or Beckett). A full authentication would require examining the ink under magnification for signs of 'slow-signing' or printing. Provenance documentation, such as proof of the signing event or matching holograms, is necessary for this item to reach the high end of the valuation range. Verification of the 'Phenom' tag's batch number would further confirm its origin.

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