Our next to skin fit that contours the body for no distractions

Body fit

Our close to body fit with a low profile silhouette for ease of movement

Slim fit

Our standard, slightly off body fit for unrestricted comfort

Regular fit

Our roomy, off body fit for maximum comfort and easy layering

Relaxed fit

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<p>Burly trail runners with features that promote a natural running gait. The ample toe box allows your toes to spread and splay naturally during your foot strike and zero drop promotes a natural stride. A flexible stone guard beneath the insole offers protection in gnarly terrain. Great for training, racing and a great option for runners with high-volume feet.</p><ul><li>Seamless engineered knit upper is reinforced with overlays for added protection</li><li>Wide toe box accommodates natural spreading and splaying at the moment of foot strike</li><li>Removable StoneGuard in the midsole provides protection in rough terrain</li><li>Quantic™ midsole is lightweight and flexible while still being supportive</li><li>MaxTrac™ rubber outsole features unique directional lugs under the metatarsals that are designed to engage as you push off</li><li>4-point gaiter trap helps to secure a range of trail running gaiters</li></ul>

Altra Superior 4 Trail Running Shoes - Women's

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'Minimal and natural' shoes offer low drop, lots of flex, and minimal cushioning. Most running shoes are 'Light and responsive' with medium cushioning and good energy return. 'Cushioned and floaty' shoes have maximum cushioning.

Some shoes include added motion control or stability features to help minimize over pronation, where the foot tends to roll inward in a biomechanically imbalanced running position.

The approximate thickness of the midsole cushioning under the heel and the forefoot. A thicker heel and greater difference between heel and toe height tends to suit heel-strike runners, while forefoot and midfoot strikers may prefer a minimal drop between heel and toe cushioning.

The drop is the difference in height between the heel and the forefoot midsole cushioning. Traditional running shoes tend to have a 10mm drop or higher while minimalist style shoes are on the lower end of the spectrum.

Waterproof shoes and boots feature a waterproof-breathable membrane and a gusseted tongue to help keep your feet dry in wet conditions.

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Altra Superior 4 Trail Running Shoes - Women's

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