Seat can be made from marine vinyl, canvas, or crisp sailcloth.  The vinyl is the most popular, but the canvas does look rather classy.  If you're someone who likes to slide across your seat on the drive, then I'd suggest the shiny side of the vinyl, or the sailcloth, which is super slippy. 
 
The standard foam inner is a combination of hard and medium recon foam, with a 1cm firm upholstery foam layer on the top.  This can be substituted for a top layer of memory foam if you have a particularly sensitive bottom, for an additional £5. The inner is wrapped in heavy duty plastic, to provide water resistance.
 
Double width bow seat with an internal central strap also available at a cost of £70.
 
Fonts for name or club embroidery shown above.  Specific desired fonts can be found on request.  Embroidery is £5 an end for up to £5 letters, and then charged at £1 a letter thereafter. Decorative embroidery is charged at £10 an end.  Specific image digitisation charge is £12.50.