Loving the Enhanced Responsiveness of the ASICS Novablast 4

Introduction to ASICS Novablast 4

The ASICS Novablast 4 is designed as a high-cushion daily trainer, aimed at providing maximum comfort for runners tackling various distances—from leisure runs to intense workouts. This latest iteration introduces significant modifications that enhance its functionality compared to the Novablast 3, making it a compelling option in the current running shoe market.

Design Innovations

At first glance, the Novablast 4 retains a familiar silhouette akin to its predecessor, characterized by a robust form with a distinctly shaped midsole and heel. However, a closer inspection reveals notable design enhancements.

• Midsole Foam: The shoe features a new midsole foam called FlyteFoam Blast + Eco, which incorporates some recycled materials. Nevertheless, its environmental impact remains limited in terms of post-consumer considerations.
• Midsoles and Outsole Shape: An aggressive midsole rocker has been integrated, allowing for smoother transitions and quicker responsiveness. Additionally, the forefoot and heel exhibit broader flaring, enhancing stability and providing a dependable platform.
• Upper Construction: The upper is crafted from an engineered woven material, providing better stretch, ventilation, and durability. It offers a softer, smoother feel compared to the previous model, although the stretch hasn’t significantly improved.
• Higher Sidewalls and Tailored Tongue: The shoe features raised sidewalls and a newly designed tongue with neoprene-like wings, providing a more secure fit around the foot.
• Outsole Material: The outsole is covered with AHAR rubber, enhancing grip and overall durability. Notably, this model marks the first instance of a CO2e label for Novablast, measuring at 11.2 kg CO2e.

Weight, Stack Height, and Drop

The Novablast 4 maintains a generous stack height, measuring 41.5mm in the forefoot and 33.5mm in the heel for men, and 40.5mm/32.5mm for women, resulting in an 8mm drop. With a test weight of 9.4 ounces (267 grams) in a men’s UK 8.5, it is slightly heavier than its predecessor but lighter than comparable competitors such as the Gel Nimbus 25 or Brooks Ghost Max. Priced at $140, it remains consistent with its predecessor.

Performance Insights

Traditionally, the Novablast series has had mixed reviews, primarily due to its softer cushioning, which some runners find less responsive. However, after a thorough testing phase spanning nearly 35 miles at diverse paces, the Novablast 4 appears to address these concerns effectively.

The firmer midsole enhances responsiveness, contributing to a more efficient, rockered ride that favors movement over a softer feel. While the characteristic plushness remains, runners can expect quicker transitions and better performance as speeds increase, making it suitable for both easy jogs and more vigorous sessions.

Overall Verdict

The ASICS Novablast 4 presents a compelling option for runners who appreciate a substantial shoe without compromising responsiveness. Its bulk is balanced by a stable design and supportive features. If you prefer maximalist footwear that continues to deliver cushioning and comfort, the Novablast 4 is likely to meet your running needs effectively.

Technical Specifications

Test Methodology

Kieran Alger, a seasoned reviewer specializing in running gear, has assessed the ASICS Novablast 4 alongside other models under various conditions—from gym workouts to outdoor trails, covering distances from 5K to ultramarathons. His evaluations measure key attributes such as fit, cushioning, and overall responsiveness.