Can anyone answer this?

[siejones]

Does those side triangles open up on the C19 bivi?

http://www.warehouseexpress.com/binsandscopes/hides/baghides.html

[mfwild13]

Most of this stuff is supplied by Wildlife Watching Supplies (http://www.wildlifewatchingsupplies.co.uk/plist_products.htm) so you could try them directly.

[CTR_Chris]

yes they are flaps over mesh windows

[siejones]

yes they are flaps over mesh windows

Thanks :)

So you can't poke a lens through em then? :)

[Steep]

If you cut a hole in the mesh you could, probably not much room to move inside there though.