Fit and grip are critical for climbing shoes so this is a standard fit shoe with a quick and practical cross over fastening for support and stability. There is no lining to the back of the shoe but the front has lining with a deformable insert and an anti-perspirant tongue which helps prevent creasing.  Upper: Suede leather, slip lastedLining: Posterior none, anterior Pacific (controlled deformation insert)Midsole: LaSpoFlex 1.8mm completeSole: FriXion Black 4mmWeight: 490g (per pair)