Rebuild

Rebuilding your muscles after they have been damaged during training and races is essential for endurance athletes. Our range of proteins is designed to suit every goal and budget, including Whey Protein, our premium Whey Protein Isolate, great tasting Overnight Protein, delicious Protein Bars and the biggest innovation in protein for years – SiS WHEY20.

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18 Item(s)

  • Protein Bar Bundle

    Protein Bar Bundle

    protein-bar-bundle
    1

    £12.00
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  • SiS Overnight Protein 1kg Chocolate

    SiS Overnight Protein 1kg - Chocolate

    016112
    2

    Regular Price: £48.00

    Special Price £43.99

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  • Advanced Isolate + Bundle

    Advanced Isolate + Bundle

    sis-bundle-13t
    3

    Regular Price: £100.00

    Special Price £59.99

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  • SiS WHEY20 78ml Mixed 4 Pack - Strawberry & Lemon

    SiS WHEY20 78ml Mixed 4 Pack - Strawberry & Lemon

    100070
    4

    Regular Price: £8.00

    Special Price £4.99

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  • SiS Advanced Isolate + 1kg Strawberry

    SiS Advanced Isolate + 1kg - Strawberry

    100040
    5

    Regular Price: £45.00

    Special Price £39.99

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  • SiS Advanced Isolate + 1kg Mint Chocolate

    SiS Advanced Isolate + 1kg - Mint Chocolate

    100010
    6

    Regular Price: £45.00

    Special Price £39.99

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  • SiS Protein Bar 55g 20 Pack Mint Chocolate

    SiS Protein Bar 55g 20 Pack - Mint Chocolate

    009497
    7

    Regular Price: £40.00

    Special Price £35.99

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  • SiS Overnight Protein 1kg Vanilla

    SiS Overnight Protein 1kg - Vanilla

    016716
    8

    Regular Price: £48.00

    Special Price £43.99

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  • SiS WHEY20 78ml 12 Pack - Strawberry

    SiS WHEY20 78ml 12 Pack - Strawberry

    100069
    9

    Regular Price: £24.00

    Special Price £21.49

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  • SiS WHEY20 78ml 12 Pack - Lemon

    SiS WHEY20 78ml 12 Pack - Lemon

    100068
    10

    Regular Price: £24.00

    Special Price £21.49

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  • SiS Protein Bar 55g 20 Pack Chocolate & Peanut

    SiS Protein Bar 55g 20 Pack - Chocolate & Peanut

    009169
    11

    Regular Price: £40.00

    Special Price £35.99

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  • 50 Pack Bar Bundle

    50 Pack Bar Bundle

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    12

    Regular Price: £75.00

    Special Price £39.99

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  • SiS WHEY20 78ml 8 Pack Bundle - Strawberry & Lemon

    SiS WHEY20 78ml 8 Pack Bundle - Strawberry & Lemon

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    13

    £16.00
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  • NEW - Recovery Bundle

    Recovery Bundle

    sis-bundle-9t
    14

    Regular Price: £94.00

    Special Price £75.20

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  • SiS Whey Protein 1kg Chocolate

    SiS Whey Protein 1kg - Chocolate

    015115
    15

    £25.00

    Out of stock

  • SiS Whey Protein 1kg Vanilla

    SiS Whey Protein 1kg - Vanilla

    015719
    16

    Regular Price: £25.00

    Special Price £12.49

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  • SiS Whey Protein 1kg Strawberry

    SiS Whey Protein 1kg - Strawberry

    015016
    17

    Regular Price: £25.00

    Special Price £12.49

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  • Whey Protein Bundle

    Whey Protein Bundle

    sis-bundle-14t
    18

    Regular Price: £49.00

    Special Price £43.99

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18 Item(s)