The two best-selling Backpacks currently are the Free shipping Front & back baby baby carrier backpack bags hanging baby bags The four seasons breathable, Side carry ergonomic newborn wrap baby carrier backpack sling (Blueplaid) and Newborn Kid Infant Baby Carrier Backpack Front Back Rider Sling Comfort Wrap Bag Breathable 3D Mesh Baby Sling Carrier. The most popular Backpacks are from Ubela, China and theBabaSling. Backpacks from these brands usually cost about RM 28.00 to RM 1561.00. Depending on your needs, you can get Slings and Backpacks. Most Backpacks used today are in Yellow, White and Red. Up to 79% discounts on Backpacks can be found only on iprice.