AERO BLAZE 3 GRVL GORE-TEX Men's Gravel Running Shoes Unused. I haven't used them because they overlap with another pair of shoes I have. The Aero Blaze 3 GRVL GORE-TEX is a running shoe that breaks habits. Lightweight and all-terrain, this pair allows you to run freely in any condition, from roads to unpaved roads and beyond. The Opti Form2 in the midsole provides soft landings and resilience in your stride, and the stable fit and grippy sole give you the courage to head towards new horizons. Weight: 283g Upper: Textile Outsole: Rubber Lining: Textile Insole: Textile Heel Height: 35mm Forefoot Height: 27mm Drop: 8mm Shoelace Type: Regular laces