Polyester Imported Ultralight inflatable camping and backpacking pillow is ideal for fast and light adventures; lighter than a deck of cards, and small enough to fit in a shirt pocket when packed Scalloped bottom edge cradles shoulders for comfort when sleeping on back, side, or upright; stretch knit 20D polyester face fabric is soft and comfortable Multi-function mini valve provides easy inflation, fast deflation, and the ability to fine-tune the firmness of the pillow; TPU air bladder is durable and supportive Compatible with Sea to Summit camping sleeping mats with PillowLock patches to secure pillow in place for a good night’s sleep Large size pillow measures 17.3 x 12.6 x 5.5 inches when inflated, and packs down to a compact 2 x 3.25 inches in included stuff sack; weighs just 2.5 ounces The Sea to Summit Aeros Ultralight Inflatable Camping and Travel Pillow is ideal for fast and light adventures, weighing less than a deck of cards, and small enough to fit in a shirt pocket when deflated. Regular and Large sizes feature a scalloped bottom edge that cradles shoulders for comfort when sleeping on back, side, or upright, while the Deluxe is a full-size rectangular pillow. The multi-function mini valve provides easy inflation, fast deflation, and the ability to fine-tune the firmness of the pillow. Soft stretch knit 20D polyester face fabric is lightweight and comfortable, and the TPU air bladder is durable and supportive. Compatible with Sea to Summit camping sleeping mats with PillowLock patches to secure the pillow in place for a good night’s sleep. The Sea to Summit Aeros Ultralight Pillow is available in three sizes: Regular measures 14.2 x 10.2 x 4.7 inches inflated, packs down to 2 x 2.8 inches, and weighs 2.1 ounces; Large measures 17.3 x 12.6 x 5.5 inches inflated, packs down to 2 x 3.25 inches, and weighs 2.5 ounces; Deluxe measures 22 x 14 x 5.5 inches inflated, packs down to 4.7 x 3.9 x 1.1, and weighs 4.6 ounces. Sea to Summit products are guaranteed against defects in materials or workmanship for the lifetime of the product.