That, no doubt, has been at least partially responsible for a little extra firmness in the Canadian dollar not just across the U.S. dollar but across a wider range of currency. (sencanada.ca)
The breathe - flex ™ is a dual firmness design with extra firmness for proper development on the infant side and extra comfort on the toddler side thanks to additional Flex - PE ™ foam layers. (colgatekids.com)
They provide extra firmness, durability, and strong side and edge support so a mattress won't sag when your baby stands or walks near the edge. (consumerreports.org)