Ampnbsppuma evopower vigor 4 astroturf trainers green geckoblacksafety yellow kids ampnbsp the evopower vigor 4 jr is an entry price football boot that follows closely the design language of the evopower vigor 1ampnbsp ampnbsp the evopower vigor 4 jr combines lightweight comfort and longevity by using a soft yet highly durable synthetic upper material the stud configuration offers an optimal mix between stability and agilityampnbsp ampnbsp details ampbull soft and