The material improves long term comfort

This spike is unisex sizing, size selection is in Men's sizing. See size conversion chart below.

The RESURGENCE XC cross-country shoe is designed to help you achieve new personal bests more comfortably. Its upper construction helps provide advanced breathability and stability so your feet remain cool and supported during your training. These shoes also feature a foam midsole that help create softer and smoother landings in each step.

unisex sizing:

Mens 3.5 = Womens 5
Mens 4 = Womens 5.5
Mens 4.5 = Womens 6
Mens 5 = Womens 6.5
Mens 5.5 = Womens 7
Mens 6 = Womens 7.5
Mens 6.5 = Womens 8
Mens 7 = Womens 8.5
Mens 7.5 = Womens 9
Mens 8 = Womens 9.5
Mens 8.5 = Womens 10
Mens 9 = Womens 10.5
Mens 9.5 = Womens 11
Mens 10 = Womens 11.5
Mens 10.5 = Womens 12
Mens 11 = Womens 12.5
Mens 11.5 = Womens 13

Each pair adapts to lightweight performance