Made for approaches on trails and mixed terrain, speed hiking and travel, the Scarpa Zen Pro is a durable and versatile shoe featuring a suede water-resistant upper built with Sock-Fit DVL construction. The Cocona lining is breathable and fast-drying, for quick evaporation of sweat and odour control. It also features a Vibram Spyder II rubber outsole with injected midsole and rubber toe rand for added protection. Scarpa have taken the wildly popular Zen and upgraded it to make the Zen Pro. The EVA midsole has been improved with an injected model for longer life. The Vibram sole is now Spyder II, which offers great stick, but won't pick up pebbles and gravel. The leather along the side of the shoe has been upgraded with PU-injected reinforcing, improving abrasion resistance. The Zen Pro also offers a better fit with SCARPA's Sock-Fit DV system, giving them the feel of a running shoe, but the sensitivity of an approach shoe.  Features and Specifications Upper: Suede Water Resistant 1.8mm Lining: Cocona P-Flex Spyder II BH Weight: 480g; (1/2 pair size 42) Scarpa Sizing Chart   European Size US Men's Size US Women's Size UK Size 38 5.5 - 6 7 5 39 6.5 7.5 5.5 40 7.5 8.5 6.5 41 8 9 7 42 9 10 8 43 9.5 - 10 10.5 - 11 8.5 - 9 44 10.5 11.5 9.5 45 11 12 10  All Scarpa non-plastic footwear uses European sizing  1 Euro whole size = 6.6 mm 1 US whole size = 8.4 mm The Euro sizes above cover the same size range as US sizes  Scarpa Boots and Shoe Size Fitting Advice For trail / mountain / approach / lifestyle products: The bigger/heavier/more supportive the product, the more you may want to upsize by .5 - 1 full size. Lighter, softer, more supple shoes can be sized closer to your measured size. Note: SCARPA Plastic mountain boots all use UK sizing; UK converts easily: 1 full size smaller than US men's size, 2 sizes smaller than US women's size. Try on with appropriate socks for your usage. The bigger the boot, the more appropriate a bigger sock. If you use orthotics or already have aftermarket footbeds, measure against the standard footbed in boot. Fit into boot for sizing/fitting the boot. Best to try on at the end of the day when your feet are larger/swollen, than when your feet are fresh to ensure good fit after a long day. Lacing can play an incredibly important part of a good fit. Be sure to play with lacing when analyzing fit. Make sure your heel isn't slipping. Make sure your toes aren't hitting the end. Approach shoes may be sized smaller for performance purposes but beware... small shoes are really uncomfortable on the trail. Scarpa Zen Pro Women's Approach, Travel and Fast Hiking Shoe