01
Nappa Leather Upper
Natural softness, flexible construction and a premium tactile finish.
Technology
Engineered
with purpose.
A controlled system of premium materials, internal cushioning and a final visible transparent ruby-red TPU sole.
Innovation in Every Layer
One system. Five layers.
The supercritical EVA element is hidden inside the assembly. The transparent ruby-red TPU remains the final visible external sole.
02
Soft Interior Lining
Calf leather and breathable mesh around the foot.
03
PU + Gel Footbed
Cushioned, antibacterial top treatment and removable where feasible.
04
Hidden EVA Core
Lightweight, resilient cushioning designed to support all-day wear.
05
Ruby TPU Outsole
Crystal-inspired construction, custom traction, high-abrasion and UV-stabilised intended specification.
+
Thermoformed Structure
Shape retention, heel stability and integrated three-dimensional ribs.
Signature Construction
Ruby, through and through.
The outsole’s transparent ruby finish is not a decorative insert. It is the visible external base of the shoe and the signature of the First Drop.
Visuals represent the intended product construction. Final production specifications remain subject to prototype approval and quality testing.