The Ariel® and its brother shoe the Beast® have long served as motion-control superheroes, coming to the rescue of runners with low or flat arches and excessive pronation. Able to leap tall buildings in a single bound? Not quite. But their full-length MoGo midsoles do offer increased energy return for extra spring in your step—plus maximum-strength support and long-lasting cushioning in an orthotics-adaptable shoe. As for whether they’ll help you run faster than a speeding bullet: They're definitely a first step!

Technically Speaking:

MIDSOLE:

HYDROFLOW – Dynamic viscous ﬂuid units for heel & forefoot enhance midsole cushioning—attenuating shock with industry leading dampening and comfort.

BIOMOGO – We’ve taken the long-lasting cushioning of our MoGo midsole and made it environmentally friendly. How, you ask? By adding a non-toxic, natural additive to the MoGo compound that encourages anaerobic microbes to munch away once it hits the landﬁll.

	e1 \| Midsole/outsole compound works in conjunction with HydroFlow® and S-257 to progressively dampen the forces of energy that occur during the contact phase.
	e2 \| Midsole/outsole compound is used to enhance resilience under the metatarsals, resulting in a more powerful propulsion.
	PROGRESSIVE DIAGONAL ROLLBAR (DRB) – A high-density post at the medial arch is engineered for pronation control and creates a smoother transition from the midstance phase into the propulsion phase.

DRB ACCEL – Enhances tunable torsion of the midfoot. Shank-like thermoplastic devices vary from single units of a set modulus, to dual-unit versions of varied modulus (tuned with higher stiffness for medial support, the lateral side less stiff to smooth the ride).

OUTSOLE:

HPR PLUS – A higher durability, abrasion-resistant rubber outsole compound that wears longer.

|HPR GREEN- This durable and long-wearing outsole compound is made with dispersed silica, resulting in premium wet-dry traction for excellent skid-resistance and a more environmentally friendly composition.

ENGINEERED STABLE POD CONFIGURATION –Midsole and outsole components are engineered to set the foot up in an efﬁcient, balanced position from heel strike to toe-off, offering maximum stability and responsiveness.

UPPER:

ELEMENT–Upper technology featuring superior microﬁber construction to provide weather protection in a light, supple, quiet fabric that doesn’t sacriﬁce breathability, durability, or comfort.