Step into your softest run ever. With plenty of super soft DNA LOFT cushioning underfoot, the Glycerin 19 delivers premium comfort mile after mile. More DNA LOFT than ever for extreme underfoot softness. Updated materials in the mesh upper provide a better fit. Super soft cushioning Our reconfigured midsole has even more DNA LOFT cushioning for our softest-ever ride, without sacrificing responsiveness or durability. Plush internal fit Our mesh upper and plush interior liner surround your foot, for a snug but flexible fit. Plush transitions Full-length DNA LOFT through the midsole makes the move from heel to toe feel incredibly soft and smooth.