The Big Bronco Race Vest is a 12-liter backpack created in collaboration with UltrAspire Elite Athlete and ultramarathon champion Jeff Browning. The Big Bronco is designed to highlight all the features of the Bronco race vest but with greater capacity and accessibility. This vest has a total of 7 pockets accessible on the go and is capable of carrying 4 bottles and a 2 liter tank. While two of these bottles can be stored in the front, our exclusive Fluidic Holster System ensures that accessing the back pockets is intuitive and easy. The back pockets have a divider that helps organize your gear and 2 large gussets add storage. The main rear compartment is designed to lie flat when empty, while its 4-way stretch mesh can expand to accommodate a large capacity. A soft foam flare on the back acts as a guide, making access to the rear compartment easier. Z-pole attachments have been added and are accessible with the left or right hand on the move, and these attachments can also function as compression for the Fluidic Holster compartments. The front harness features 4 pockets and the MaxO2 Form adjustable closure system. Like all UltrAspire packs, this vest features an ErgoFit™ design for long-term comfort. Available in 3 sizes.
Recommended use: Versatile package used in any running, training or racing scenario. Details: • Lightweight, soft, breathable, yet durable, UltrAcool Light Mesh. • Ultra-light silicone and PU-coated nylon fabrics resist water, abrasion and tears. • Max O2 Form™ for unrestricted breathing while maintaining a stable pack. It uses a shock cord with good stretch for unrestricted breathing but also good rebound on the stretch for a stable ride. Patent pending. • Soft polyester microfiber edges, soft and non-abrasive on skin and clothing. • Sweat-proof webbing: does not absorb water, does not become saturated or heavy. • Safety stitched bartack on all stress points. • Zigzag stitching on the elastic for greater strength, greater elasticity and bounce. • Simple, fast, easy connection in and out of the bladder.
Fit: unisex Size: Small (35″-40″), Medium (38″-43″) or Large (43″-46″) Chest Size Measurement Color: pitch black/red Hydration (not included): Bottle not included compatible (not included): UltraFlask 550, Formula 250, Human 20 oz 2.0, 2L Reservoir 2.0 or collapsible bottle capacity: 732 ci (12L)