Since I've been getting a lot of inquiries about the difference between the two versions of Alva, I figured I'd do a picture comparison to help you decide better. :)
First stop: The Appearance
Err. Nothing much on the outside if you ask me. But Alva 3.0 does have more design options than 4.0. :)
Here's where the real comparison begins: the inner layer of the nappies.
As you can see, Alva 4.0 has double gussets, which (based on the feedback that I get from other mommies), have greater leak prevention than ordinary 3.0. Moms who breastfeed swear by 4.0's over 3.0's.
One more thing about 4.0's is that there are two 'pathways' (lol) for the insert. There's a flap and then another opening on top, which makes stuffing inserts easier for most mommies.
4.0 also has a snap for the insert, a plus for convenience. There's no misplacing of inserts here! :)
I personally think that you wouldn't go wrong with any of these two. It's a matter of preference nalang. Some moms like 4.0, others prefer 3.0. But quality wise, it's both two thumbs up. :)