15" tall when flap is closed, 22" when open. 13" wide This IRONMAN 70.3 Santa Cruz triathlon gear backpack is perfect for any serious triathlete. Designed to hold all your essential items, this lightweight backpack is perfect for transitioning from bike to run. It's made of high-quality materials and features ample storage space for your clothes, food, and other essentials. The backpack is unisex and suitable for any triathlete looking for a reliable and functional transition backpack. Whether you're training for a race or simply looking for a lightweight backpack for your next triathlon, this IRONMAN 70.3 Santa Cruz backpack is the perfect choice.