The Lady Isaac S is back by popular demand! As Newton's most structured and supportive shoe it's ideal for walking, running, or anything in between. The Isaac S is for runners who want stability in a responsive, maximally cushioned ride.

UPPER

• Highly-breathable closed mesh
• Slip-proof laces with heel-securing double eyelets
• Lightweight ergonomic support strapping
• Metatarsal stretch panels for foot adjustment
• Reflective logo and heel tab

MIDSOLE

• High-rebound EVA
• Action/ReactionTM technology in the midfoot and heel
• Midfoot support chassis for added stability
• Medial posting to offset pronation
• Beveled heel and toe for smooth gait
  

OUTSOLE

• Durable high-traction lugs
• Increased toe spring
• Pronounced heel rocker
• High-wear carbon rubber with traction tread

SPECS

• Weight • 9.2
• Platform • 4 lug
• Heel-to-toe drop • 4.5mm