The poncho is one size, so you can share it between caregivers, and the colors are not gender specific, so your husband can use it too. Use it with front or back carries in most any baby carrier.

Waterproof.
Unisex color and size.
Lightweight and packs up small.
Comes with small carrying case and fits in purse/bag.
Dries fast.
Elastic-fit hoods.
Works with most soft baby carriers.
Use with front or back carries.