These performance-driven sneakers have all the same On qualities you know and love—antimicrobial mesh upper, premium cushioned sole, speed lacing system—except now they’re packable: The fully collapsible uppers make them easy to slip into any stuffed (or even overstuffed) backpack, carry-on, or suitcase. Reinforced with the signature grippiness on the bottom, this pair is fit for any given activity—intense runs, leisurely hikes, treadmill climbs, you name it. 

• Upper and rims: 57% polyester, 20% thermoplastic polyurethane, 7% ethylene-vinyl acetate, 6% polyolefin elastomer, 5% cotton, 3% TPU, 1% polyurethane
• Bottom unit: 33% ethylene-vinyl acetate, 27% rubber, 22% polyolefin elastomer, 10% polypropylene, 7% polypropylene