Ergonomic Airbags Support System: 42 ergonomic airbags to dynamically distributes pressure across hips, waist, tailbone, and thighs. Effectively reduces long sitting fatigue while offering full-body orthopedic support. Customizable Comfort: Travel cushion airplane seat adopt unique manual system, it can be inflated fully with just need pump, easy to adjust firmness to suit different weights and firmness preferences. (Pro tip: 60-70% inflation for daily use; 40-50% during flights to counter altitude pressure changes) Breathable & Waterproof & Non-Slip made of hybrid Breathable and waterproof material with 3D airflow channels, car seat cushions for driving maximizes ventilation to minimize sweat during prolonged sitting. Silicone grip dots anchor securely on airplane seats, car seats, wheelchairs, and office chairs. Its waterproof design applies for in any environment Lightweight and portable: Perfect for air travel, picnics, road trips, camping, hiking, the beach, fishing, sporting events, and concerts, providing unique comfort wherever you are.