S.I. Seat is the perfect compact companion adding 38mm of foam-filled comfort and support to any adventure. Whether providing much-needed cushioning for aching glutes during rest stops, compensating for cold and uncomfortable stadium seats or helping to alleviate the bouncing threadbare seats of chicken bus in Central America, our S.I. Seats are a welcome addition to any pack. Made from robust and durable 75D polyester Features our patented mini-valve for optimal inflate, deflate and fine-tuning Filled with Delta Core-Vfoam, these seats have enough insulation to keep the chill from your rear. Thickness: 3,8 cm seat Size: 40 cm x 30 cm Weight: 96g