Quiksilver Wetsuits - Quiksilver Syncro 2mm Back Zip Shorty Wetsuit - Black/ Graphite/ Blue :: Boy > Wetsuits. Iconic Quiksilver brandingMaterials: 92% Nylon/Polyamide. 8% ElastaneKids's wetsuitThickness: 2/2mmYKK back-zip: Durable and hardwearingWaterproof Hydrolock seam technology: Eliminating any water entering the\n suit through seamsGlued and Blind-Stitched Seams: Minimises water entry. reinforced with\n the Hydrolock seam technologyFN Lite Neoprene: Packed with air cells to offer supreme warmth without\n being heavyBio-fleece Thermal Neoprene: With warm. light . quick-drying jersey liningEcto-flex knee reinforcement: Extremely comfortable and offering huge\n amounts of durabilityInternal key pocket: Secure and safeBeadlock seals: Silicone beads to prevent water build-upGlideskin neck seal: Super-smooth and waterproof Size: 07-8 YRS,09-10 YRS,11-12 YRS.