Running shoe comfort meets trail worthy support in the Rush 2 Pro GTX. The nubuck upper with GORE-TEXA(R) means a refined look with waterproof protection. The trail running inspired outsole feels fast and efficient underfoot, making the Rush 2 Pro GTX your go-to trail companion. Features UPPER: Durable Nubuck leather and fabric upper with recycled content is lightweight and breathable, backed by GORE-TEXA(R) ePE BluesignA(R) for waterproof protection. DST FRAME: Dynamic Stabilizer Torsion frame gives rear-foot stability and torsion control. Technical Specifications Size Options : 40 - 46 (half sizes); 47-48 (whole size) Weight Reference : 400g; 14.1oz (1/2 pair size 42) Waterproof/Breathable : PFAS Compliant Upper : Nubuck Leather + Fabric (Recycled Content) Lining : GORE-TEXA(R) ePE Bluesign (PFAS Compliant) Midsole : 2D EVA-CM Outsole : PRESAA(R) HIK-01 / SuperGum Insole : Strobel (PSC) + DST TPU Frame Cuff Height : Low Last : SCH Primary Material : Leather & Synthetic Waterproof-Breathable : Yes Country of Origin : Vietnam Product Code : 63133200 California Prop 65 WARNING: Cancer & reproductive harm.