UltrAspire Big Bronco 12 Liter Race Vest Color:Desert Sage Our latest multi-channel optical sensor

Our latest multi-channel optical sensor for precise measurement

Its breathable engineered woven upper wraps your foot in a secure

TUNEDFIT Dual Lacing System for separate lace adjustment

With unmatched grip

yet capable when you hit dirt or gravel

UltrAspire Big Bronco 12 Liter Race Vest Color:Desert Sage Our latest multi-channel optical sensorThe Big Bronco Race Vest is a 12 liter pack built in collaboration with UltrAspire Elite Athlete and champion ultramarathoner Jeff Browning. The Big Bronco is designed to highlight all of the features of the Bronco race vest but with expanded capacity and accessibility. This vest has a total of 7 accessible pockets on the go, includes 2 UltrAspire 500 ml Softflasks, and is capable of carrying 4 bottles and a 2 liter reservoir. While two of those