ACT Running BioPerf Men's Long-Sleeve Top

Combining extreme lightness with silk-like softness, the BioPerf Top optimises comfort and efficiency while running.

Crafted using BioPerf nylon, the BioPerf Top from ACT Running is derived from castor beans, a naturally growing, renewable resource for an environmentally friendly choice. The material is also highly breathable and allows for cool, refreshing air to circulate while removing unwanted warm air, helping to regulate temperature so you remain cool throughout your run. The fabric utilises a four-way stretch to allow for a full range of movement, providing you with an enjoyable, restriction-free wearing experience; lastly, the integrated thumb loops help keep the sleeves in place and prevent them from rising.