Preggers by Therafirm Mild Support Maternity Pantyhose are made with a graduated support level of 15-20mm Hg. True gradient compression gradually decreases towards the top of the stocking to promote blood flow. Comfortable, supportive belly panel that will fit during all stages of pregnancy. Belly panel can be folded under the belly or unfolded to cover the belly. Micro-Cool process wick moisture away, keeping you cool and comfortable. Smooth seams will not dig into your growing tummy or show under clothes. Reinforced toe for durability and rounded for a comfortable fit.