Lace up and lift heavy in the Altra Solstice XT 3! This lightweight cross-trainer is built for all-day action, with a durable upper and a grippy outsole. Its A-frame quarter panel improves stability for lateral movements. Stay cool in the breathable mesh upper while the padded heel collar keeps you comfortable. When it's time to train hard, toss the Altra Solstice XT 3 in your gym bag! What's New? A-frame quarter panel improves stability. Updated mesh upper upgrades breathability Padded heel collar keeps you comfortable Who's it for? Athletes with a diverse fitness routine who need a shoe for weight racks, rope climbs, box jumps, short runs and more. Fitness fans who want one shoe for lifting weights and doing cardio at the gym. Shoe Technology Upper: Engineered mesh upper improves breathability while the padded heel collar keeps you comfortable. A-frame quarter panel improves support for lateral movements. Re-designed overlays add protection in high-wear areas. FootShape™ toe box allows your feet to splay out naturally for better balance and explosiveness. Midsole: Balancd™ cushioning provides a minimal feel with just-right responsiveness to handle your hardest workouts. Outsole: Grid-like InnerFlex™ grooves improve flexibility for natural movement.