It calls for a stretch knit - I have some net that dp's aunty bought me for something else (it only stretches sideways - not up & down) that I think might work but have no idea what it's called to google to look it up.
HELP MEEEE BEFORE MY BRAIN EXPLODES!!
(I'm finally ready to order everything I think after weeks of planning - just the sleeves/bodice top I'm not sure what to get to use for 
)
tyvm for any help (again) 