Ultraspire Zygos 5.0 Lightweight Hydration Pack - 14L and 8 Pockets Running Vest

How did it all start for our brand, Previous Page?

In 1979, Bryce faced a challenge when he couldn't find a suitable pack to optimize his performance. This led him to take matters into his own hands and create one himself.

What sets our products apart?

Our products are born from intuitive ideas that spring from the interaction of athletes engaging in their activity, fueled by the input of dedicated athletes who are inspired by their needs. This ongoing evolution leads to perfection.

Bryce Thatcher's vision

"My aim is to offer exceptional choices for exceptional individuals."

Explore our latest releases at the Store:

• Hydration Packs
• Lumen Collection
• Waist Belts
• Handhelds
• Accessories
• Hydration and Lights for Active Living

Living an active lifestyle is a journey that requires aspiration to push beyond limits. We provide the products to keep the sweat flowing as you strive for endless power and potential.

Next Page: Product Description

Check out our latest products:

• Alpha 5.0
• Momentum 2.0
• Zygos 5.0
• Legacy 2.0
• Spry 3.0
• Astral 4.0

Customer Reviews: - Alpha 5.0: Not available - Momentum 2.0: Not available - Zygos 5.0: Not available - Legacy 2.0: 4.6 out of 5 stars from 12 reviews - Spry 3.0: 4.5 out of 5 stars from 40 reviews - Astral 4.0: 4.0 out of 5 stars from 9 reviews

Price: - Alpha 5.0: $75.00 - Momentum 2.0: $75.00 - Zygos 5.0: $154.95 - Legacy 2.0: Not available - Spry 3.0: Not available - Astral 4.0: Not available

Hydration Included: - Alpha 5.0: Not included - Momentum 2.0: Not included - Zygos 5.0: 2L Reservoir included - Legacy 2.0: Compatible with 4 x UltraFlask 550, 2 SoftFlasks, 2L Reservoir 2.0 (not included) - Spry 3.0: Not included - Astral 4.0: 1 x 2 L Reservoir included

Sizes: - Alpha 5.0: SM (26” - 35”), MD (32” - 38”), LG (38” - 46”) - Momentum 2.0: SM (26”- 35”), MD (32”-38”), LG (38”- 46”) - Zygos 5.0: Small (30”-36”), Medium (32”-38”), or Large (34”-42”) - Legacy 2.0: Universal Size(s): 26”-48” - Spry 3.0: Universal Size - Astral 4.0: Universal Size

Weight: - Alpha 5.0: 9.6 oz (272 g) - Momentum 2.0: 8.0 oz (227 g) - Zygos 5.0: 13.6 oz (386 g) without reservoir, 18.24 oz (517 g) with reservoir - Legacy 2.0: 11.2 oz (318g) - Spry 3.0: 6.4 oz (181 g) - Astral 4.0: 13.6 oz (386 g)

Capacity: - Alpha 5.0: 366 c.i. (6L) - Momentum 2.0: 336 c.i. (6 L) - Zygos 5.0: 854 c.i. (14L) - Legacy 2.0: 610 c.i. (10 L) - Spry 3.0: 214 c.i. (3.5 L) - Astral 4.0: 549 c.i. (9 L)

Line: - Alpha 5.0: Race line - Momentum 2.0: Race line - Zygos 5.0: Ergo Fit - Legacy 2.0: Race Line - Spry 3.0: Essential Line - Astral 4.0: Essential Line

Technology: - Alpha 5.0: ErgoFit, On-The-Go Pockets, Distributed Weight, UltrAcool System, Max02 System, Durable and Light Weight Fabrics - Momentum 2.0: UltrAcool Light Mesh, Small Footprint, Insulated Bladder Compartment - Zygos 5.0: ErgoFit, On-The-Go Pockets, Distributed Weight, UltrAcool System, Max02 System, Durable and Light Weight Fabrics - Legacy 2.0: ErgoFit, On-The-Go Pockets, Distributed Weight, UltrAcool System, MaxO2 Form, Durable and Light Weight Fabrics - Spry 3.0: ErgoFit, On-The-Go Pockets, Distributed Weight, UltrAcool System, MaxO2 System, Durable and Light Weight Fabrics - Astral 4.0: HerFit Harness, On-The-Go Pockets, Distributed Weight, UltrAcool System, Max02 System, Durable and Light Weight Fabrics

Our products are designed with attention to detail to ensure precise movement, weight distribution, and biomechanics compatibility. Features like Insulated Bladder Compartment, Reinforced Main Back Compartment, On-the-go Pockets, and MAX02 Sternum enhance your user experience and comfort.

product information: