The curved pouch shape design of the LiteonShoulder makes a deep pocket that allows for a more comfortable fit for baby and a better grip on babys legs Most moms find it with less slipping problem for squirmy babies Lightly padded Shoulder portion distributes weight through torso and avoids straining the neck Lightly padded railings provide right amount of cushioning for babys tender thighs with no sharp edge cutting into flesh LiteonShoulder sling carrier has no overheating problem for baby and mother which is perfect for hot weather LiteonShoulder Sling Carrier is made of quality silky cotton sateenSling weighs 10 ozand is compact enough to pack away in diaper bag Buckle rings are made of cast copper zinc alloy which does not have wielding point that might cause breakage and is much stronger than aluminum rings Long tail ensures more security Closeend tails are doublestranded for easy adjustment and a neat looking appearance Liteonshoulder can be used constantly with infant to snuggle nurse or rock to sleep occassionaly with toddlerover 35lb in the hip carry position or even convert to a mini walker and toddler leashOne size fits all upto womans size 22