UltrAspire Zygo V4.0

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Our ultra comfortable, versatile large volume pack utilised in any long run scenario, training or Ultra Distance racing. it’s 14L capacity will comfortably hold all required race lists for any domestic or international ultra marathon from 50km, 100km and beyond. with 5 sizes, from XXS to Large you’re sure to find the perfect fit.


Unisex – Take measurement in cm from the armpits around the fullest part of the chest to find your ideal size.


  • XX Small (66cm – 81cm)
  • X Small (71cm – 86cm)
  • Small (76cm – 91cm)
  • Medium (81cm – 96cm)
  • Large (86cm – 106cm)