Biobottoms are the best diaper covers that you can buy. They are amazing in every way, with a cult-like following to prove it.

 Biobottoms have a super high quality, superior construction. They have a great leak protection, with double gussets around the legs to hold in the poo and elastic along the back to combat blow-out diapers (ew).  Plus the high-cut style means that the velcro will not irritate baby's tummy.  The velcro, by the way, is also very high quality - super soft yet strong and durable enough to diaper a few kids without being replaced.  We love biottoms, can you tell?

These diaper covers are made of densly felted lambswool.  Wool is naturally anti-bacterial, and is waterproof while still allowing the skin to ventilate. These are great for naptime or overnight, as a saturated cotton diaper will not leak when paired with a wool cover.

Wash in cold or warm water, hang dry.

Sizes:

Newborn: up to 8 lbs. Cut down in front to fit underneath your newborn's healing umbilical cord.

Size A: 8-14 lbs.

Size B: 14- 18 lbs.

Size C: 18-22 lbs.

Size D: 22-27 lbs.

Size E: 27-32 lbs.