Warm Dry Comfort in a Lightweight 1.5 Inch CushionThe Therm A Seat Traditional Seat 1.5 Inch is designed to keep you warm and dry in the field. It features Softtek closed cell foam that will not absorb moisture and stays flexible in cold conditions. Velcro straps allow easy attachment and transport for dependable comfort wherever you set up. 1.5 inch thick seat cushion Softtek closed cell foam Moisture resistant design Stays flexible in cold weather Velcro straps for attachment