Merrell’s best-selling trail shoe is reimagined to blend clean athletic design with functional running comfort to support an array of end-use capabilities. Breathable engineered mesh and TPU upper. FloatPro™ Foam midsole for lightweight comfort that lasts. Merrell Quantum Grip™ durable rubber outsole that enables confidence in the most extreme trail environments. Designed for adventure, the Merrell Nova 4 men’s trainers feature breathable and lightweight engineered mesh uppers complete with waterproof membrane to protect against the elements. Padded collars, removable insoles and FloatPro™ Foam midsoles provide a comfortable environment for feet, whilst Quantum Grip™ durable rubber outsoles aid in traction and underfoot support. Uppers: Textile. Lining: Textile. Sole: Man-Made. Width Fitting: Standard. Fastening: Laces. Removable Insoles: No. Manufacturer code: 333-A021L. Other: Waterproof.