best performance for every terrain and riding style. the rival tls is nitro's all-rounder in the mid-price segment. no matter the terrain, the rival tls scores with durability, stability, comfort and best heel hold that make good days on the mountain even better.outer bootthe rubber outsole with highly effective tread and abrasion-resistant rubber ensures the best grip on any terrain. the eva midsole increases cushioning and thermal insulationlinerthe thermoformable cloud 5 liner scores with highest comfort due to the lightweight, preformed thermacell material. the re/lace liner locker of the liner allows for easy re-lacing without having to open the outer shoe. latex memory pads provide better heel hold, while the flexible toe construction allows for a custom fit. the solo density ortholite® footbed provides the cushioning and support you need for long days on the mountain. the re/lace liner locker offers quick adjustment of the liner, even if the outer boot has already been laced tightly. lacing systemwith the tls twin lacing system you can lace up your boots in record time. with the two handles you can lace up the lower and upper zone of the boot independently. simply pull the handle upwards, snap it into place and you're done. the bail out system is designed to make opening the tls system even easier. simply pull the loop, which is located in the middle of the lacing system forward, for record-breaking times when opening the boot.