Breed standards for this dog do not generally specify a height; only a weight and a description of their overall proportions. Generally, the height ranges between 15 and 23 cm (6 and 9 in); however, some dogs grow as tall as 30 to 38 cm (12 to 15 in). Both British and American breed standards state that a Chihuahua must not weigh more than 2.7 kg (6 lb) for conformation.
Definition of sailcloth. : a heavy canvas used for sails, tents, or upholstery; also : a lightweight canvas used for clothing.
Answer Wiki. The transparent part of the sails is normally 'mylar' and a lot of brands use a fiber-reinforced version which they call 'x-ply' for their heavy duty wavesails. Most of the brands today also use some more advanced fiber-reinforced materials which I don't know exactly what is made of. You can probably read a little bit about it on the Severne sail website, but they probably won't tell you exactly what it's made of.