Softy paks are made out of our soft flannel material and are great for night use or when wearing a pak close to skin. The flannel gives that added soft comfort. All softy paks come with our softy belt for added comfort. Puppies on an insulin pump case. Blue Ribbon pup softy pack comes with our popular softy belt. The ultimate in pump cases. A soft pump case for children. Standard size Pump cases measure approx. 3 ½ inches wide by 2 1/2 inches high. They hold all pumps except for the distronic d-tron pump which is larger than standard size pumps.