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This heart rate strap combines unmatched accuracy
Increase visibility and safety in the dark
Spin Control Technology
Wide fill neck: easy filling and cleaning
zelfs tijdens lange afstanden
HASTKO | String | N°19 | True Black maurten gelletjes This heart rate strap combinesHASTKO String N19: Ultimate Comfort, Seamless Design and Elegant Details for Sporty Women The HSTKO String N19 is specially designed for women who are looking for maximum freedom of movement, ultimate comfort and an elegant look during intense sports activities without visible lines under their sportswear. Thanks to advanced 3D technology, seamless design and high quality breathable materials, this sports string offers the perfect combination of
