This metric refers to the percentage of material by weight that has been recycled from post- or pre-consumer sources.

Rubix and Adrenaline function well to guide the foot, for the same workouts; the determining factor for you might be Rubix’s drop height of 8 mm.The Adrenaline GTS 20’s sole unit has undergone slight changes from the 19’s overhaul to retain the soft DNA LOFT crash pad in the mid-to-lateral heel, which now tapers forward to gradually transition into the familiar BioMoGo DNA foam supporting the rest of the shoe. Brooks describe it something like a bobsled careening down… whatever it is that's considered the bobsled's natural habitat.

New Balance Rubix has a similar (surprisingly) narrow fit with ample cushion that is more firm than it looks.The midsole has lots of neutral-type cushioning without a firmer medial post so it is very comfortable even for high mileage runs. The shoe is very breathable and flexible due to its 3D Fit knit upper and offers plenty of room in the toe box while hugging the heel and locking it down well. Also, the women's line has several "neutral" options that a narrower fit runner can easily slip into. The outsole has thinned considerably from Transcend 6, starting with a scaled-down Transcend 7 into a thin layer of carbon rubber in the Glycerin GTS models.

Just understand that if you're looking to get into the Adrenaline GTS 20 or any big comfort model, you might get some foam compression over time. If for any reason you are not satisfied with your purchase we will be happy to refund or exchange it for you.

Their extremely large selection of products guarantees that you’ll find what you need every single time. Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH). The midsole, sockliner, GuideRail® system, and redesigned upper work together to cups the heel like a warm blanket (it feels like the midsole itself dips and surrounds the heel) which smoothly transitions into a springy toe off.