Brooks Glycerin 23: A Performance Review of the Latest Daily Trainer

The Brooks Glycerin 23 is a neutral daily running shoe that features a refined midsole with increased DNA Tuned cushioning in the forefoot. Released in January 2026, the shoe builds upon the platform established by the previous version, focusing on incremental improvements to comfort and traction. It is designed for runners and walkers seeking a plush, high-cushion experience for daily mileage.

What Are the Key Technical Specifications?

The Glycerin 23 maintains a consistent geometry aimed at daily training, with a specific focus on midsole density. According to technical specifications released in January 2026, the shoe features a 38mm stack height and an 8mm drop. The weight of the shoe is 301g (10.6oz). The primary update for this iteration is the addition of 2mm of DNA Tuned foam in the forefoot, intended to enhance the responsiveness of the landing and transition phases of the gait cycle.

How Does the Upper and Fit Perform?

The upper of the Glycerin 23 utilizes an engineered knit construction. This material is designed to provide a balance between structure and breathability. During testing, the knit offered a plush, secure fit around the midfoot, while the heel collar featured padding to reduce slippage. The material is flexible enough to accommodate various sock thicknesses, which can be beneficial for managing internal temperature and foot volume changes during longer efforts or varying weather conditions.

Does the Outsole Improve Traction?

A notable update in the Glycerin 23 is the modification of the outsole rubber. The rubber has been recut compared to the previous version to improve grip on road surfaces. While the platform remains relatively chunky, the enhanced traction provides a more reliable contact point for heel strikers and midfoot strikers alike. This change is particularly relevant for maintaining stability during transitions on varied road conditions.

Who Should Choose the Glycerin 23?

The Glycerin 23 is positioned as a daily trainer, making it suitable for runners who prioritize cushioning and comfort over lightweight speed. The shoe is well-suited for:

• Heel strikers: The increased forefoot cushioning and stable heel collar provide a cushioned landing.
• Daily mileage: The durable construction is designed for high-volume, lower-intensity training days.
• Runners seeking comfort: The premium knit upper and DNA Tuned midsole are engineered for a soft step-in feel.

While the shoe offers significant cushioning, runners who prefer a firmer, more stable platform for faster workouts or technical terrain may find the stack height and inherent bounce of the DNA Tuned foam less ideal. The Glycerin 23 represents a refinement of the Brooks daily trainer lineup, prioritizing a plush experience for the average training run.