PRP Seats A3902 Alpha Extra Wide Composite Race Seat (Custom)

The PRP Seats A3902 Alpha Extra Wide Composite Race Seat is an off-road-specific racing seat engineered from the ground up for performance, comfort, and driver safety. Unlike conventional race seats, the Alpha's entire construction — from shell to foam to outer materials — has been purpose-built for the rigors of off-road racing and endurance competition.

The extra-wide design comfortably fits drivers with a waist size up to 42", while the injection-molded, contoured bottom cushion absorbs impact energy and reduces fatigue over long-distance races. High-density foam wraps the entire seat for superior lateral containment, keeping drivers planted and in control on rough terrain.

The recessed headrest and reclined shoulder area create additional helmet clearance and allow full compatibility with a HANS device, keeping the spine aligned at the correct angle without pushing the chest forward. Oversized shoulder harness slots are sized to simultaneously route both a racing harness and a fresh air hose — a feature unique to the Alpha design. Angled lap belt slots ensure proper lap belt installation geometry.

The A3902 is a fully custom-built seat — choose from 60+ colors and materials, including Sport Mesh for added breathability. Optional upgrades include front goggle pockets, heated seat elements, air lumbar support, and premium diamond stitch patterns.

Key Features:

• Injection-molded, contoured bottom cushion for long-distance comfort
• Thicker, higher-density foam throughout for enhanced support and impact absorption
• Extra-wide fit — accommodates waist sizes up to 42"
• Reclined headrest provides additional helmet clearance
• Recessed shoulder area for full HANS device compatibility
• Oversized shoulder harness slots accommodate harness and fresh air hose simultaneously
• Angled lap belt slots for correct lap belt geometry
• Higher lateral containment keeps legs securely positioned
• Fully customizable — 60+ color and material combinations available
• Optional upgrades: goggle pockets, heated seat, air lumbar, diamond stitching
• Backed by a 24-month warranty

What's in the Box: One seat (mounting hardware not included — requires PRP composite seat mounts, sold separately).