S1 D3O Leather Suit. The S1 D3O Leather Suit delivers incredible value as a performance-packed entry point into the race market. Now upgraded with D3O Level 1 armor throughout, the suit is CE AAA Certified and race-day ready. Its sport-focused design includes TPU shoulder cups, knee sliders, and ergonomic stretch paneling, offering protection, flexibility, and aggressive style in equal measure. Built from durable AST+ outer material, the S1 features an understated cut that transitions seamlessly from the track to the street. It's lightweight, breathable, and comfortable on or off the bike, perfect for new riders stepping into full-leather performance. Safety: CE Certification Rating: AAA. D3O Level 1 Armor: Shoulder, elbow, hip, long knee. Back and Chest: Armor-ready with pocket ONLY. Material: