presuming you're talking about the "front", rather than the "top"
my green one (about 9m old) also has 2 zips on the verticals and then about an inch of velcro on the "bottom"
Yes that's the bit I was talking about, the front mesh having the two zips and then the velcro down the bottom, only the purple one has the two zips plus velcro, our double and the sons single are full zipped for the head entry mesh anyway.
The head end canvas flap velcros down on all of them.
The purple swag also came with a nylon kind of pouch for the pegs rather than canvas like the other too.
Just minor differences I noticed, I don't think it really makes much difference....well it might if the insect screen at the head end on ours had velcro at the bottom because night time toilet visits are noisy enough with undoing a zip let alone velcro lol! That kind of stuff doesn't matter if you're sleeping by yourself though!
Landyowner with ours I think the top canvas is zipped except at the head end might be some velcro, again at least the screen is fully zipped for those middle of the night expeditions!