Exped's Mini Pump is a lightweight and compact mat pump. Press the one way valve of the pump onto the mat valve. Place your hand over the air hole of the pump and press down. Repeat until the mat reaches the desired stiffness. With older Exped valves (smaller diameter) slip the silicone tube into the pumps one way valve before attaching the mat. First time use: Unpack and allow some time for the foam to expand. | 