Alexis has a nylon wrap? Does it snap? Velcro? Lydia, can you post a link to where you got them. I thought they only had pull-ons, but I vaguely remember WeeBees carrying a side-snapping Alexis, but then discontinuing them, I think.
ANYWAY . . . vinyl (polyvinyl chloride or PVC) - this stirs up arguments on both sides of the issue about the same as the cloth -v- disposable argument.
There is information on both sides of the spectrum <read 'extreme differences here'> to be found. You can read all about vinyl from the perspective of the industry itself at
The Vinyl Institute and other supporters of that industry. The other extreme can be found easily at GreenPeace and there are several articles linked from
www.mindfully.org or a direct link to the Plastic (PVC/vinyl) links can be found
here.
Well, I do believe they are warmer - but it might be more evident in the summer months than now when things are cooling, who knows. I know when I place my hand on the 'other' side of a nylon pull-on and breathe out warm hair (I've tried this with Alexis Nylon and with Bummis' Whisper Pant), I can feel the air passing through - the heat 'escaping.' However, I do not get this effect with vinyl.
We are exposed to plastics in every aspect of our lives and we really have to figure out how to draw the line with regards to our exposure. I personally feel that a compromise in the middle between anti and pro is where I sit. It seems with production the way it is, there is hardly ANYTHING produced any longer that isn't in some way, shape or form detrimental at some aspect of its life (be it in production or in decomposition).
We don't like plastic/vinyl for the smell. Nylon breathes and allows the air to circulate and the smell can 'air out' of these covers. The same has not proven to be true when I have used vinyl covers (a child I used to watch had them) - they reaked. I finally gave her some nylon covers to use at our house - she eventually switched.
It comes right down to personal preference and availability. If you HAVE THEM and they WORK - it is most likely better to USE them (unless you are anti-plastic and have removed plastics in general from your household: toys, children's plates, lotion and baby wash bottles, hair brushes, etc. . . etc. . . oh how it stretches out when we think about it). Discarding them would only put them back into the environment when they would be better utilized - extending their life.
And on . . . and on . . . and on I ramble.