Crafted with a synthetic and mesh upper, these shoes offer lightweight support and breathability, further enhanced by the minimalist design that helps to reduce unnecessary bulk and allow for natural foot movement. The featured Vibram outsole delivers exceptional traction and is resistant to wear and tear, providing a solid grip on varied terrains whether you're on the trail or pavement. Shoes are light and strong great for all kinds of training they are in excellent condition Vibram sole is in excellent condition too they seem to run a little smaller than my previous ones I wear 9 us in converse and the New Balance Minimus fit but it is a tight fit ask my anything! no returns.