As Veja reports,

"We recommend that you take one size above your usual shoe size.

VEJA creates its first training: the Impala, the lightest pair VEJA has developed.

Weight: 245g (size 43 EU)
Drop: 6 mm (17mm – 11mm)
Stride profile: Neutral
Surface: Indoor / Gym

MATERIALS
Engineered-Mesh upper
Recycled polyester (100%)
T.P.U. Panels
Pebax® Rnew® V logo and heel insert
Ricinus oil (62%)
Insole
Amazonian rubber (12%), sugar cane (46%) and recycled polyester (23%)
Midsole
Sugar cane (70%)
Outsole
Amazonian rubber (31%)
L-Foam latex insert
Natural latex (30%)
Tech lining
Recycled polyester (100%)
Laces and backloop
Recycled polyester (100%)
Bio-based / Recycled (58%)
Made in Brazil

The Impala provides comfort and support. It has been designed for all types of exercise, such as gym sessions and treadmill runs.Eng-Mesh technology allows for custom placement of breathable and supportive zones. The mesh alternates between tight and loose stitches."