Back Slits high waisted black slim pants PILLAR Rubi black jeans textured wide pants PILLAR Marmot Pillar Pant Women's Clothing PrAna Pillar 7 8 Yoga Leggings Pants Women's Size XSmall Black NWT eBay. versatile in design, the pillar pant in black features a relaxed fit with a tapered leg and full length hem. finished with front pleats, angled side pockets, a fly opening and covered elastic at the back waist. cut in a soft fine stretch twill, style with the conviction top and loft ankle strap heel for an elevated take