Marmot Cumulus Pillow Inflatable camping/backpacking pillow with ergonomic head and neck support and SpiraFil insulation for added warmth and softness while hiking and camping RF welded seams to ensure high strength and durability Fine-tune locking valve allows for easy inflation and adjustment of pillow firmness Weighs 4.3 ounces; includes removable, washable brushed tricot pillow cover; compresses into stuff sack (included) for easy packing 75D 100% polyester