Men's Libera 4 RIVERA M [Altra Altra] Running Shoes * Size exchange on

It has a small habit, has a moderate cushioning, and supports a wide range from daily training to full marathon.

The Rivera series is the 0mm drop model that can be transitioned most naturally from the Altra's drop model "Altra forward Experience" which appeared in 2024. The foot shape that takes into account the spread of the natural toes peculiar to Altra fits the original shape of the foot and provides a high fit for those who have used conventional slim shoes.

RIVERA 4 inherits the "Slim" foot shape design that has been adopted since the beginning of the series, and has evolved further. The design of heel pads and shoe tongue has been renewed, and the fit and stability have been improved. The shoe tongue has about three times the thickness of the previous work, maintaining comfort even for a long time.

The upper material has also been changed from layered mesh to engineering mesh with excellent breathability and stretching, achieving lighter shoes. This has made your feet smoother.

Like successive RIVERA, it uses Altra EGO midsole and 28mm stack height, maintaining excellent cushioning. Like Lone Peak 8, the thicker insole supports the heel stability and is designed for a long time.

The upgraded "Rivera 4" is ideal for various activities, from daily training to full marathon.

Size feeling. . .

Altra uses a slightly tight "Slim" foot shape design, and always selects the same size wearing shoes from other manufacturers. If you are wearing the RI VERA ~ Rivera 3 model, there is no problem with the size without changing it.

Weight: 255g (US10.5 / 28.5cm)
Midsole: Altra EGO ™
Outsole: Rubber
Cushion: Middle
Stack height: 28mm
Drop: 0mm
Upper: Engineering mesh
Footprint: Slim