Brooks Glycerin 21

Brooks · Road · Daily Trainer

Overall Score: 83/100 based on 4 verified expert reviews.

Technical Specifications

  • Weight: 278 g
  • Heel-to-Toe Drop: 10.6 mm
  • Carbon Plate: No
  • Midsole Foam: DNA Loft v3
  • Official Retail MSRP: €180 (manufacturer reference price — better deals may be available at retailers)

Pros & Strengths

  • DNA Loft v3 midsole delivering responsive energy return
  • 10 mm drop that relieves strain on the calves and Achilles
  • 11 mm drop that relieves strain on the calves and Achilles
  • DNA Loft v3 cushioning combining impact protection and consistent rebound

Cons & Trade-offs

  • Slightly more measured grip on wet painted road markings

Expert Review Sources

  • Running Lab : 88.3 / 100 — « In Brooks's daily trainer lineup, the Glycerin 21 delivers a smooth, dependable ride powered by its DNA Loft v3 midsole. Its balance of shock absorption and responsive rebound meets every expectation for daily trainer training. »
  • Runagora : 84.0 / 100 — « In Brooks's daily trainer lineup, the Glycerin 21 strikes a convincing balance between impact protection and lively turnover (278 g, a 10.6 mm drop). Its upper lockdown and outsole durability on road make it a standout contender at €180. »
  • RunRepeat : 83.6 / 100 — « The Glycerin has been a mainstay in Brooks' lineup for over two decades for good reasons. In our tests, we found that the 21st version stands out as the best yet—boasting enhanced cushioning, a robust outsole, and unmatched comfort from the first mile. It’s particularly suitable for heel strikers, providing a stable ride that excels on long runs. However, we also noted that it might polarize some runners, primarily catering to rearfoot strikers and being too warm for hot summer runs. »
  • Solereview : 82.1 / 100 — « Calibrated with a 10.6 mm drop and weighing 278 g, the Brooks Glycerin 21 delivers progressive forefoot flex and evenly distributed DNA Loft v3 compression on the mechanical test bench. Its upper lockdown and outsole durability on road make it a standout contender at €180. »

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