Practically, technical fabrics need to fit snugly to work properly e.g. wicking, insulating. But surely the obsession is about following pro trends - i.e. towards wearing almost TT-style tight aero clothing all the time.
The fabric properties usually start to diminish once stretched to the max.
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Practically, technical fabrics need to fit snugly to work properly e.g. wicking, insulating. But surely the obsession is about following pro trends - i.e. towards wearing almost TT-style tight aero clothing all the time.