The A4RG0003 is a trail running shoe developed through a collaboration between Answer4 and rig, designed to transition smoothly between technical trails and asphalt. The midsole uses rig's proprietary EVA foam formulation, balancing compression and rebound to deliver impact absorption and propulsion in a low-profile stack. An original rubber compound and lug pattern on the outsole provide reliable grip across varied surfaces, while the Dyneema mesh upper offers lightweight durability and fast-drying performance. A wide toe box and zero-drop construction promote natural foot positioning, and the polyurethane insole features a water-expelling pump structure for wet conditions.
Zero-drop construction with wide toe box for natural foot movement
Dyneema mesh upper — lightweight, durable, and fast-drying
Rig proprietary EVA foam midsole for cushioning and rebound
Original rubber compound outsole with custom lug pattern for mixed-terrain grip
Thick polyurethane insole with water-expelling pump structure
Shortened tongue and refined lace placement to reduce ankle stress
Weight: approx. 267g per shoe (US9 / 27cm)
Sizing: US5 (23cm) – US11 (29cm) in 0.5cm increments
