High Peak Dallas Twin Mattress 194x138x10 Green 41033 The Dallas double mattress from High Peak is equipped with 23 horizontal air chambers. It is made of high-quality, non-slip brushed polyester fabric. An integrated foot pump allows you to inflate the mattress in seconds. The single mattress has an oversized flap valve. Technical data: Material: 100% polyester, 190T Dimensions: 194x138x10 cm Package dimensions: 50x18 cm Weight: 3400 g