Not surprisingly I'm still struggling a bit with sewing vinyl onto nylon!
This is the pocket I'm sewing on; the angled bit sticking out to the right will work like an envelope flap and will be tucked in to keep the Information Card in place, so it can't slide out of the pocket opening.
The first challenge was how to keep the vinyl pocket in place on the vest in order to sew it. I can't pin it as the pins will leave holes in the vinyl, but blu-tack seems to work fine! Only, I can't put blu-tack on the vest itself as it doesn't come off (found that out the hard way, lucky it's a sample vest!), but the paper template is stuck to the vest with sticky tape, and the vinyl pocket is stuck to the paper with blu-tack. Can anyone say "complicated"?
Here is the vinyl pocket in place, ready for sewing.
When I went to Spotlight for materials (and advice) I was assured that I did not need a special foot to sew thin clear vinyl, apparently it will 'glide right through as the feed dogs are underneath'. I have done a little bit of research, and thought I may have to buy a teflon foot, but was again assured that my regular foot would be fine. Fail.