Twisted straps reduce the area of strap that would restrain a child during a crash, diminishing the seat's effectiveness. Look for convertible car seats that have front harness adjustment.
[header] How to buy a convertible car seat [title] Research the safety features of different convertible car seats you are considering. [substeps] Make sure the models you look at have 5-point harnesses, as this ensures a better fit which is safer for the child. Check the straps to make sure they are wide and do not easily twist.