ALLEVYN Gentle Border Multisite Silicone Gel Adhesive Hydrocellular Dressing. ALLEVYN Gentle Border Multisite, 6-3/4″ 7-1/16. Silicone Gel Adhesive Hydrocellular Dressing. ALLEVYN Gentle Border Multisite has a unique tri-lobe design making it the dressing of choice when dressing awkward body areas.