Neck is fused with steel. Unfortunately, these caps ripped upon my first use (as shown in the picture). It was worth the money I spent on it. The front strap hit at the wrong point. I decided on this product versus another warmer with temp indicators due to the price. Fitting the case is as simple as you?d expect. 5 reg shoe size (size 9 in Nike sneakers and Brooks for reference. If you put a bike rack full of bikes hanging off a light gauge metal bumper, pay attention to your rear view mirrors as you watch the bikes tumble end over end down these nations highways. They are beyond cute and look great with my summer linen dresses. Si me agrado, para mi iPhone