Motorcycle Explorer Nov 2015 Issue 8 | Page 210

Waterproof. This mini tent has one of the highest flysheet waterproof ratings around. With a hydrostatic head of 10,000 on the fly sheet that really is rather good going! The fly is separate to the base that has a sewn in groundsheet to the same HH rating as the fly. With a rating like that you can rest assured that just about any rain you get caught in you’ll be safe and dry in the mini tent. What is a hydrostatic head? Good question and looking around it shows that for something to be legally classed as ‘waterproof’ not resistant or replant then it must have a HH of 1000 min. What the do is have a tube of set diameter and then stretch fabric over one end. Then fill the tube with water until it begins to come through the fabric. 1000HH means that the water was 1m high in the tube before it had enough pressure to come through the fabric.