These are of a wonderful quality and very well made indeed. The Genoa contrast is not an easy strap construction as, unlike the corfam-style, the holes do not go through the leather but are contrasted with a different colour which is also the same colour as their back side (blue holes/blue back, etc.).
They come in 5 colour combinations (blue, grey, red, white and yellow) and 2 sizes (20mm and 22mm) and have 2 holding rings (both floating) for a better comfort. Their length is approximately 90/125mm and have a 2mm tapering (i.e. 20/18mm and 22/20mm). Their thickness is 4.5mm at the lug ends and they thin down to 3mm at the buckle and tail sides, thus making them indeed very comfortable on the wrist. Great quality quick-release steel spring bars will be included with each strap.
Choose from the drop down menu and do not hesitate to contact me for any questions you might have.
P. S. Try also my leather Genoa straps (last photo), listed separately in the store.