SPECIFICATION GUIDE · RUNNINGAREA EDITORIAL · 30 OCTOBER 2026
Flame 4 and Flame 5 both have a published 6mm heel-to-toe drop. Their published heel and forefoot heights are different. That makes them a useful example of why a drop figure needs its two underlying measurements beside it when you compare shoes.
The two figures behind 6mm
| Model | Forefoot | Heel | Difference |
|---|---|---|---|
| Flame 4 · 672512205 | 30mm | 36mm | 6mm |
| Flame 5 · 672612213 | 33mm | 39mm | 6mm |
361° gives the first pair of figures on its Flame 4 CQT page and the second on its Flame 5 Apex page. Subtracting forefoot height from heel height gives 6mm in both cases. The arithmetic tells us the difference between the published heights; it does not make the two sets of heights identical.
In these published specifications, Flame 5 is 3mm higher at both points. That is a comparison of the brand’s stated dimensions, not our own measurement of two shoes. The pages do not provide enough detail here to reproduce a common laboratory measurement protocol, so we keep the numbers attributed to the manufacturer.
Read the rest of the specification separately
A shared drop does not tell you whether two shoes use the same foam, plate or upper. Those are separate entries to check. For example, the Flame 4 listing names a Qu!kBONE DYNAM!C carbon-fibre plate, a Qu!kFLAMECQT midsole, a C!LK upper and MORPHIT lacing. Those names belong to the exact model being described; a number in the drop column cannot stand in for them.
Our Flame 4 listing keeps model family 672512205 visible. The separate Flame 5 listing uses 672612213. Keep those references with a comparison or an enquiry, especially where a series also has ET, MIX or Future versions.
Keep an insole figure in its own context
The Flame 5 page describes a 4mm insole separately from its 33mm and 39mm figures. We reproduce that distinction rather than adding 4mm to both numbers and presenting a new pair of heights. Without an explicit statement about what the quoted heights include, that would introduce an assumption into the comparison.
The same habit helps when reading a product graphic: note what component a dimension refers to, and keep its label attached. A separate insole measurement and a heel-to-toe difference answer different questions.
Drop and shoe size are different checks
The 6mm figure is not a sizing conversion. Choose your actual size using the model’s size selector and manufacturer chart, then use the geometry specification as another part of your comparison. Our size guide explains the distinction between a chart’s CM label and measured internal length.
We have not run a comparative wear test or measured running economy in these two models. The conclusion supported here is specific: both carry a 6mm manufacturer-published difference, while their stated heights differ. It does not establish a performance ranking or predict which shoe will fit you better.
Primary sources: 361° Flame 4 CQT and 361° Flame 5 Apex, opened 30 October 2026. Table calculations are RunningArea’s arithmetic using those published figures. Product photographs are from our existing catalogue.