We can supply the water bags to you for the fixing of this shell tent.We will make some opening with zippers,then you can put the water bags inside the opening to fix the tent. 
Tie down ropes and ground anchors are included and provide exceptional stability and, when ptroperly anchored, the inflatable shell is capable of withstanding winds uo to 30 mph(48km/hr). The shell itself is composed of durable 0.3mm vinyl pvc tarpaulin that's weather resistant and 100% fire retardant., meet to the British Standard BS7837, It is regarded as the best materials for making inflatable games.  
Remarks: different colors are available.You can still put your advertising Logo on this kind of shell tent.