I was disapointed with this product as the design and materials aren't up to standard. The case that comes with the player while made of cheap looking materials is a better design and allows you to use the arm band that comes with it. The plastic clip on this slicone one is just that a clip and is not designed for use with an arm band. I had a simular clip on a Bell rear flashing red led light which broke off and fell to the road while I was Bicycling. I would not trust this product to hold the player securly and will not use it...What a waste of money especially the rediculous shipping cost for such a small lightweight item. The from of this silicon case is open to the weather unlike the one that comes with the unit. I am sticking with the original case as it is a far better design for sports.. especially Bicycling. I don't know how this product got such a high average rating as it is garbage!