The IMSE VIMSE Soft Cover is a polyester knit laminated with PUL.  This cover keeps baby dry, but is breathable and still allows air circulation.  It is extremely soft, pliable, and adjustable.  The soft velcro makes for easy diaper changes and eliminates the use of pins. 

The IMSE VIMSE Night Cover has a 100 % cotton outer and a polyester inner with polyurethane lamination.  This keeps the baby dry, but still allows air circulation.  This diaper cover is known for its superior quality and breathability.  It is very pliable and adjustable.  The soft velcro makes for easy diaper changes and eliminates the use of pins.   The difference between the the Day Cover and the Night Cover:  the day cover has less polyurethane laminiation, meaning more breathablity, less water resistance;  the night cover has more polyurethane lamination, meaning more water resistance, less breathability.   This means that you can use the night cover during the day and vice versa.  Comes in white or print fabric.  The white and farm animal print are made of organic cotton.  The bear print is currently switching to organic cotton: the bear print with the darker outline is organic cotton.