Rare Stone Island Shadow Project Heat Reactive Button Shirt Size L Art 5819
OVERVIEW
Stone Island Shadow Project short sleeve shirt in size L, engineered in Italy using technical cotton/nylon blend fabric with heat-reactive behavior. This is not a standard Stone Island mainline piece — Shadow Project represents the experimental arm of the brand, developed with Errolson Hugh (Acronym), focused on fabric research, garment treatment, and conceptual construction.

During ironing, the fabric visibly reacted to heat and shifted tone, confirming the thermosensitive property of the textile. This is a functional material characteristic, not damage.

Art code: 5819/0308/1145
Made in Italy.

DESIGN DETAILS
Stone Island Shadow Project line

Short sleeve structured silhouette

Heat-reactive fabric (thermosensitive surface treatment)

Concealed technical placket with internal contrasting tape panel

Industrial black buttons

Clean minimal collar construction

Lightweight structured summer technical fabric

Subtle tonal shift under heat exposure

Made in Italy

Art 5819/0308/1145

The internal placket construction with exposed contrast technical mesh/tape panel is typical of Shadow Project’s engineered detailing language — minimal outside, experimental inside.

FABRIC & TECHNOLOGY ANALYSIS
Composition (as per label):

78% Cotton

22% Polyamide (Nylon)

This cotton-nylon blend allows structure retention while enabling reactive dye/surface treatment. The heat-reactive behavior occurs due to thermosensitive pigment or finishing applied to the fabric.

When exposed to ironing heat, the color visibly deepens/shifts temporarily — this confirms functional treatment.

This is a Shadow Project hallmark: subtle transformation through environmental interaction.

Lightweight, breathable, summer-ready.

MEASUREMENTS (Laid Flat)
Chest: 55 cm
Stomach: 53.5 cm
Bottom Hem: 54 cm
Shoulders: 45 cm
Sleeve (shoulder): 21 cm
Sleeve (pit): 8.5 cm
Length (back): 72 cm

Tag size: L
Fit: Regular / slightly structured

IMPORTANT: Please compare with a similar garment before purchasing.

CONDITION
Very good pre-owned condition.

No structural damage.
One very small pin-size hole near the lower front area (shown clearly in photos). It is minor and does not affect wearability. Priced accordingly and disclosed transparently.

Heat reactivity is natural to the fabric and not a flaw.

No other defects observed.

WHY THIS PIECE MATTERS
Shadow Project pieces consistently resell higher than mainline Stone Island due to:

Limited production

Experimental fabrics

Technical construction

Collector demand

Association with Acronym design language

Heat-reactive Stone Island treatments are highly desirable within techwear communities.

This is not basic Stone Island — this is research division Stone Island.

STYLING DIRECTION
Pairs well with:

Technical cargo pants

Shadow Project trousers

Acronym pants

Minimal black trousers

Summer layered techwear fits

Can be worn open over technical tee for layered aesthetic.

GARMENT CARE
Label instructions:

Wash separately at 30°C delicate

Do not bleach

Do not tumble dry

Cool iron

Do not dry clean

Dry in shade

Follow label strictly to preserve reactive treatment.

IMPORTANT FIT & RETURNS POLICY
Returns are NOT accepted for fit issues.
Full measurements are provided.
Buyers must compare measurements carefully before purchasing.
Additional measurements available upon request.

SHIPPING & COST DISCLAIMER
International shipping costs may appear high; however, the actual cost paid is often higher than listed.
The shipping rate is partially reduced to remain competitive.

Import duties and taxes (if applicable) are buyer’s responsibility.

PHOTO DISCLAIMER
Photos taken in direct light to clearly show texture, tone, and any imperfections.
Color may appear slightly brighter under lighting conditions.

Additional photos available upon request.

CUSTOMER RESOLUTION NOTICE
If there are any concerns upon receiving the item, please contact first before opening a case.
A mutually agreeable solution will always be prioritized.

AUTHENTICITY & BRAND DISCLAIMER
This item is 100% authentic Stone Island Shadow Project.
Seller is not an authorized retailer.
Pre-owned personal wardrobe item being sold to support university expenses.

RETAIL PRICE & MARKET POSITIONING
Shadow Project shirts typically retailed in the €300–€450 range depending on treatment.

Given the heat-reactive property, Made in Italy construction, and condition (with minor disclosed pin hole), a fair secondary market positioning would be:

$170 – $260 USD, depending on demand timing and audience targeting (techwear / archive / Shadow collectors).

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