Men's Altra® Solstice XT 2 :: If the Solstice XT spent its offseason in the gym, the result would be the Solstice XT 2. The caged upper is firmer than the previous model, and the toe reinforcement promotes toe protection. It's the ultimate cross-trainer, built for in-the-gym weightlifting and lateral moves, but ready to get out on the road. Comfortably combine your gym workouts with short runs-no matter how you break a sweat, the Solstice XT 2 is always up for one more rep.