u/AnotherDownwrdSpiral

So, I just bought this new flat cage I love the way it wears and feels, however after a few hours of wearing it I feel some discomfort behind my balls almost like it's chafing if I take it off and put some lotion or flu behind it it's good for a while longer does anybody know what the causes on this? My other cages that weren't flat I usually had a 2-in ring and didn't have any of these problems