The Martombike Iron Man PRO insert is most often chosen for a half and a full distance Iron Man. The structure is thin enough to not get in the way during the running stage, and before that it guarantees comfort on the bicycle despite its small size.
It is a multi-layer structure made of dense foam in the thermal molding technology. The extra perforation contributes to its enhanced breathability. Another one of its advantages is elasticity – the insert works in every direction. Due to the manufacturing technology and foam thickness, the product has to be classified as quick-drying – it is an incredibly important characteristic that competitors appreciate during the post-swimming stages.