Leonisa® 15790 Invisible Arm ShaperA shaper that smooths out your upper arms and back. Made of SkinFuse for super comfy control in the whole area it covers; this signature fabric is totally seamless for a second skin feel. Criss cross posture corrector bands for all day back support. Open bust design that gently centers the bust and lets you wear your own bra. Goes invisible under your clothes. 4 level adjustable front hook and eye closure. Fabric content: 80% polyamide, 20% elastane.