The 9 Steel bone waist trainers are designed to be used while exercising, the boning is flexible enough to withstand vigorous workout routines
It provides support for your lower back when doing weights.
The 9 Steel bone waist trainer is also a good trainer to wear discreetly underneath your clothing especially if you are sitting at a desk all day as it supports your back and improves posture.
It really is an all round good belt to wear with many benefits.
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