Hi-Tec Quadra Life is a superb outdoor walking boot from Hi-Tec. Quadra Life's synthetic breathable mesh uppers and moisture wicking lining make it a great addition to any outdoor footwear collection. Hi-Tec Quadra Life, a sturdy alternative to trainers, achieves outstanding durability on any terrain through the carbon rubber MDT outsole and comes in at great Hi-Tec prices.