SIA IN ADVANCE - 189.99 total.

All SIA In Advance reservations are final sale. A $99.99 non-refundable digital reservation fee is required.  Your reservation confirmation is delivered immediately upon purchase, and the $99.99 reservation fee is applied to the total cost of each SIA in Advance purchase. Design and size selections are locked in at checkout and no changes are permitted. Production typically takes 60–90 days and may not begin on the date of purchase due to production scheduling, holidays, or reservation windows. Once your item is ready to ship, a final invoice will be sent and the remaining balance must be paid within 7 calendar days. If the balance is not paid or the order is cancelled at any time, the reservation is voided and the $99.99 fee is retained and may be issued as store credit valid for one (1) year on www.siacollective.com. Orders will ship only after the remaining balance is paid in full.

The SIA SUPASTRUCTS takes the familiar cold-weather boot and rebuilds it through an exaggerated, architectural lens. A streamlined laceless upper is constructed in premium nubuck suede, rising into a sculpted ankle profile and sitting atop an oversized platform sole that gives the silhouette its unmistakable weight. Finished with a plush sherpa lining and contrasting padded heel detail, the SUPASTRUCTS balances rugged winter utility with the bold proportions of modern SIA footwear.

Design Details

• Premium nubuck suede upper
• Mid-height ankle boot silhouette
• Laceless slip-on construction for a clean, uninterrupted profile
• Plush sherpa lining throughout the interior for added warmth and comfort
• Oversized platform sole with substantial sidewall construction
• Rounded, voluminous toe shape
• Sculpted upper with minimal exterior paneling
• Reinforced horizontal seam construction through the forefoot and heel
• Contrasting pebbled leather padded detail at the rear collar
• Exposed decorative stitching along the side and rear construction seams
• Raised platform wraps continuously around the shoe for a grounded, architectural appearance
• Serrated rubber outsole for added traction
• Minimal branding-free exterior keeps the focus on material, shape and proportion

Style Notes

• The SIA SUPASTRUCTS is designed to make proportion the statement, pairing a minimal upper with an intentionally oversized foundation.
• Style with wide-leg denim, stacked cargos or oversized sweats to lean into the boot’s substantial silhouette.
• For a sharper contrast, pair with cropped or tapered bottoms that leave the full platform and sculpted ankle construction exposed.
• Nubuck suede and sherpa bring traditional cold-weather texture to the design, while the exaggerated platform pushes it firmly into contemporary streetwear.
• Built as a winter statement piece, the SUPASTRUCTS delivers warmth and utility without sacrificing the unconventional shape that defines SIA footwear.

📦 Shipping Protection Recommended

We strongly recommend purchasing Shipping Route Protection at checkout to safeguard your order against loss, theft, or damage during transit. Once your package is shipped, we are not liable for any lost, stolen, or damaged items.

FITS TRUE TO SIZE IF YOU WEAR HALF SIZE SUGGEST GO UP EX. 8.5 GET A 9