Altra Solstice XT 2 Mens It’s nice and light so you can lift nice and heavy! The Solstice is built for any workout in the gym, a walk around town, or an easy road run. Tackle it all in this workhorse. A firmer caged upper offers added support for lateral movements while toe reinforcement adds toe protection, and an athletic rubber outsole brings durability inside and out. With zero drop, plenty of room for your toes to move freely, and a secure midfoot, you can move naturally in whatever you’re doing. From the gym to the road, the Solstice XT 2 is your go-to cross-training shoe.