Archive

Posts Tagged ‘Brooks DNA’

What Is Brooks DNA?

November 28th, 2012

It’s no surprise that no two runners run with the same impact on the ground. Body weight, running mechanics, and pace are only several of the many factors that affect the amount and distribution of force applied with each step. So, how can a shoe be designed to work well for a broad range of runners? Brooks’ answer: DNA.

DNA is the cushioning gel Brooks includes in the midsole of many of their shoes. The DNA gel is adaptive to the force applied to it, meaning that the higher the force, the stiffer it becomes. This way, the cushioning becomes firmer for heavier runners or more responsive when running at a quicker pace.

Brooks DNA uses a non-Newtonian fluid, or a fluid whose viscosity is dependent on the stress applied on it. At lower impacts, loose interactions between the polymers of the DNA material make it flexible and soft. When impact is increased, the interactions strengthen, making the material harder and firmer. For an extreme example, check out this video of people running across a pool of non-Newtonian fluid – they can cross it when running, but when standing still they sink.

Brooks offers its DNA in several configurations in its current footwear lineup.

  • Anatomical DNA is the most common application in current Brooks shoes. It is comprised of two discrete inserts in the heel and the ball of the foot for adaptive cushioning upon footstrike.
  • Full-length DNA, found in premium trainers, features a single insert spanning the length of the foot, providing adaptive cushioning in key areas from heel strike to toe-off.
  • BioMogo DNA does not use a gel insert. Instead, the DNA material is blended with Brooks’ BioMogo midsole compound for adaptive cushioning throughout the platform. This eliminates waste through the removal of insert cutouts, but has the drawback of limiting the ability to target the DNA material to particular high impact points in the shoe. BioMogo DNA is available in all Brooks PureProject shoes, as well as in the Cascadia.

Taro Running Shoes ,

Brooks PureFlow – First Look

September 29th, 2011

Brooks PureFlow Men's Shoe April 2012 Color

The Saucony Kinvara 2 no longer stands alone. Prepared to duel, is the Brooks PureFlow. It is built with a 4mm heel-toe offset, just like the Kinvara 2, but sits an estimated 2mm higher off the ground (stack height: heel-23mm, forefoot-19mm). The extra 2mm mostly comes from the outsole, which should increase durability over the Kinvara 2. But that extra thickness, no matter how slight, does come with a weight increase. The PureFlow comes in an estimated 1.3 ounces heavier than the Kinvara 2 but is still quite light (men’s sample size 9.0=8.6 oz, women’s sample size 8.0=7.6 oz).

Comparisons with the Kinvara 2 do not end with the specifications. The PureFlow is similarly quite soft while standing or walking but more responsive while running.  Whereas some customer feedback indicates the Kinvara 2 may be too soft at a quick pace, initial reports suggest the PureFlow to be more responsive at faster paces. This unique dynamic is the result of Brooks blending their DNA cushioning with their premium BioMoGo midsole foam.

As part of the Brooks PureProject line, the PureFlow comes with a set of standard features geared toward midfoot striking and a less-is-more philosophy. This shoe is for those who want a more “natural” experience but with cushioning not found in the near-barefoot type shoes (Altra Adam/Eve, Inov-8 Bare-X 200, Merrell Trail/Pace Glove, New Balance Minimus Trail, Saucony Hattori).

The PureFlow has an MRSP of $90 with a limited release in October 2011. A broader release with additional colors begins January 2012.

Brooks PureFlow Women's Shoe October 2011 color

Jonathan Running Shoes , , , , , , ,