Protein

Protein is essential for endurance athletes, to ensure your muscles are rebuilt after your activity. Protein products are designed to suit every goal and budget, including Whey Protein, our premium Whey Protein Advanced Isolate +, great tasting Overnight Protein, delicious Protein Bars and the biggest innovation in protein for years – WHEY20. All available in a wide range of sizes and flavours!
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  1. SiS Recovery Bundle
    SiS Recovery Bundle
    Save 20%
    Was €155.00 €124.00
    0 Reviews
  2. SiS PLANT20 Powder - 900g
    +3Flavours
    SiS PLANT20 Powder - 900g
    Save 25%
    Special Price €29.25 Was €39.00
    19 Reviews
  3. SiS PLANT20 Bar - 12 Pack
    +3Flavours
  4. SiS Whey Protein Tub - 1kg
    +4Flavours
    SiS Whey Protein Tub - 1kg
    Save 15%
    Special Price €33.15 Was €39.00
    65 Reviews
  5. SiS PLANT20 Bar - 64g
    +3Flavours
  6. SiS PROTEIN20 - 12 Pack
    +3Flavours
  7.  SiS Protein Bar - 20 Pack
    +2Flavours
  8. Plant Based Bundle
    Plant Based Bundle
    Save 30%
    Was €55.00 €38.50
    0 Reviews
  9. SiS PROTEIN20 - 55g
    +3Flavours
  10. SiS Overnight Protein Powder - 1kg
    +3Flavours
  11. SiS Protein Bar - 55g
    +2Flavours
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