Lace up and lift heavy! The Solstice XT 3 is designed for flexibility, stability, connection, and comfort, so it’s ready to train as hard as you do. An A-frame quarter panel is designed for stability assurance, to help you tackle lateral movements. The updated mesh upper is engineered for breathability and a padded heel collar helps keep your foot comfortable. Re-designed overlays are designed to add protection and a rubber outsole helps bring the durability. With zero drop and Altra’s signature FootShape fit, you get plenty of room to help your toes move more freely, with a secure midfoot. The updated mesh upper is engineered for breathability and a padded heel collar helps keep your foot comfortable.