Men's Rivera 4 Size:13 The edges of these adjustable

The edges of these adjustable heel lifts are tapered for improved comfort

Designed to replace the removable liner in a wide range of footwear

giving you incredible speed and efficiency without sacrificing ground feel or stability

High density cushioning provides extra protection in high impact areas

Athletic Annex Lightning Blend Running Sock No Show

Men's Rivera 4 Size:13 The edges of these adjustableAltra Rivera 4 The Altra Rivera 4 is a versatile daily trainer with a refined design, perfect for everyday runs. It features AltraEGO foam for responsive cushioning, FootPod technology for natural movement and grip, and an improved upper and heel collar for better fit and comfort. Designed with a slim fit and zero heel toe offset, its ideal for those seeking a natural running experience in a narrower package. Key Features: Cushioning: Medium Support: