SIS

SIS, or Science in Sport, is a leading nutrition company specializing in sports performance and endurance products. With a commitment to scientific research and innovation, SIS provides athletes with cutting-edge nutrition solutions to optimize their training and competition. From energy gels and hydration tablets to recovery drinks and protein bars, SIS offers a comprehensive range of products designed to fuel performance and enhance recovery. Trusted by elite athletes and recreational enthusiasts alike, SIS continues to push the boundaries of sports nutrition, helping athletes of all levels achieve their goals and reach peak performance.
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  • sis-go-energy-electrolytes-gel-lemon-mint-30-pack
    Sale

    SIS GO Energy + Electrolytes Gel - Lemon & Mint (30 Pack)

    Science in Sport - SIS

    SIS GO Energy + Electrolytes Gel - Lemon & Mint (30 Pack)
    $117.99 $136.32
  • sis-go-energy-electrolytes-gel-salted-caramel-30-pack

    SIS GO Energy + Electrolytes Gel - Salted Caramel (30 Pack)

    Science in Sport - SIS

    SIS GO Energy + Electrolytes Gel - Salted Caramel (30 Pack)
    $117.99
  • sis-energy-oat-bar-white-choc-macadamia

    SIS Energy Oat Bar - White Choc/Macadamia

    Science in Sport - SIS

    SIS Energy Oat Bar - White Choc/Macadamia
    $4.89
  • sis-energy-oat-bar-blueberry

    SIS Energy Oat Bar - Blueberry

    Science in Sport - SIS

    SIS Energy Oat Bar - Blueberry
    $4.89
  • SIS Beta Fuel Gels - Neutral (6 Pack)
    Sale

    SIS Beta Fuel Gels - Neutral (6 Pack)

    Science in Sport - SIS

    SIS Beta Fuel Gels - Neutral (6 Pack)
    $29.89 $31.78
  • SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon (6 Pack)
    Sale

    SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon (6 Pack)

    Science in Sport - SIS

    SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon (6 Pack)
    $29.89 $35.41
  • SIS GO Energy + Electrolytes Gel - Salted Caramel

    SIS GO Energy + Electrolytes Gel - Salted Caramel

    Science in Sport - SIS

    SIS GO Energy + Electrolytes Gel - Salted Caramel
    $3.99
  • sis-go-energy-electrolytes-gel-lemon-mint

    SIS GO Energy + Electrolytes Gel - Lemon & Mint

    Science in Sport - SIS

    SIS GO Energy + Electrolytes Gel - Lemon & Mint
    $3.99
  • SIS Juice Rest + Berry - 55ml

    SIS Juice Rest + Berry - 55ml

    Science in Sport - SIS

    SIS Juice Rest + Berry - 55ml
    $4.89
  • SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon (30 Pack)
    Sale

    SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon (30 Pack)

    Science in Sport - SIS

    SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon (30 Pack)
    $139.99 $163.60
  • SIS Beta Fuel Gels - Strawberry & Lime (30 Pack)
    Sale

    SIS Beta Fuel Gels - Strawberry & Lime (30 Pack)

    Science in Sport - SIS

    SIS Beta Fuel Gels - Strawberry & Lime (30 Pack)
    $134.99 $149.96
  • sis-go-caffeine-shot-cola

    SIS GO Caffeine Shot - Cola

    Science in Sport - SIS

    SIS GO Caffeine Shot - Cola
    $6.39
  • sis-rego-collagen-shot-apple

    SIS REGO Collagen Shot - Apple

    Science in Sport - SIS

    SIS REGO Collagen Shot - Apple
    $7.39
  • sis-rego-cherry-juice
    Sale

    SIS REGO Cherry Juice - 30ml

    Science in Sport - SIS

    SIS REGO Cherry Juice - 30ml
    $3.89 $3.99
  • sis-gel-beta-fuel-electrolytes-raspberry-lemon
    Sale

    SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon

    Science in Sport - SIS

    SIS Beta Fuel Gels + Electrolytes - Raspberry & Lemon
    $4.89 $4.99
  • sis-beta-recovery-1-5kg-salted-caramel
    Sale

    SIS Beta Recovery 1.5kg - Salted Caramel

    Science in Sport - SIS

    SIS Beta Recovery 1.5kg - Salted Caramel
    $118.99 $129.95
  • sis-beta-recovery-1-5kg-strawberry
    Sale

    SIS Beta Recovery 1.5kg - Strawberry

    Science in Sport - SIS

    SIS Beta Recovery 1.5kg - Strawberry
    $118.99 $129.95
  • sis-beta-recovery-1-5kg-
    Sale

    SIS Beta Recovery 1.5kg - Vanilla

    Science in Sport - SIS

    SIS Beta Recovery 1.5kg - Vanilla
    $118.99 $129.95
  • sis-beta-recovery-1-5kg-chocolate
    Sale

    SIS Beta Recovery 1.5kg - Chocolate

    Science in Sport - SIS

    SIS Beta Recovery 1.5kg - Chocolate
    $114.99 $129.95
  • SIS REGO Rapid Recovery - Chocolate - 500g Resealable Pouch
    Sale

    SIS REGO Rapid Recovery - Chocolate - 500g Resealable Pouch

    Science in Sport - SIS

    SIS REGO Rapid Recovery - Chocolate - 500g Resealable Pouch
    $44.89 $47.95
  • SIS REGO Rapid Recovery - Strawberry - 500g Resealable Pouch
    Sale

    SIS REGO Rapid Recovery - Strawberry - 500g Resealable Pouch

    Science in Sport - SIS

    SIS REGO Rapid Recovery - Strawberry - 500g Resealable Pouch
    $44.89 $47.95
  • SIS HYDRO+ Electrolyte Drink Mix - Lemon (Box of 20)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Lemon (Box of 20)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Lemon (Box of 20)
    $64.49 $69.95
  • SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Box of 20)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Box of 20)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Box of 20)
    $64.49 $69.95
  • SIS HYDRO+ Electrolyte Drink Mix - Berry (Box of 20)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Berry (Box of 20)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Berry (Box of 20)
    $64.49 $69.95
  • SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Box of 6)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Box of 6)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Box of 6)
    $19.89 $21.95
  • SIS HYDRO+ Electrolyte Drink Mix - Berry (Box of 6)

    SIS HYDRO+ Electrolyte Drink Mix - Berry (Box of 6)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Berry (Box of 6)
    $19.99
  • SIS HYDRO+ Electrolyte Drink Mix - Lemon (Single Serving)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Lemon (Single Serving)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Lemon (Single Serving)
    $3.00 $3.99
  • SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Single Serving)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Single Serving)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Orange & Mango (Single Serving)
    $3.49 $3.99
  • SIS HYDRO+ Electrolyte Drink Mix - Berry (Single Serving)
    Sale

    SIS HYDRO+ Electrolyte Drink Mix - Berry (Single Serving)

    Science in Sport - SIS

    SIS HYDRO+ Electrolyte Drink Mix - Berry (Single Serving)
    $3.00 $3.99
  • SIS REGO Rapid Recovery - Vanilla - 500g Resealable Pouch
    Sale

    SIS REGO Rapid Recovery - Vanilla - 500g Resealable Pouch

    Science in Sport - SIS

    SIS REGO Rapid Recovery - Vanilla - 500g Resealable Pouch
    $44.89 $47.95
  • SIS Beta Fuel Gels - Neutral (30 Pack)
    Sale

    SIS Beta Fuel Gels - Neutral (30 Pack)

    Science in Sport - SIS

    SIS Beta Fuel Gels - Neutral (30 Pack)
    $134.99 $149.96
  • SIS Beta Fuel Gels - Neutral

    SIS Beta Fuel Gels - Neutral

    Science in Sport - SIS

    SIS Beta Fuel Gels - Neutral
    $4.69
  • SIS GO Plus Isotonic Energy Gels - Blackcurrant (30 Pack)
    Sale

    SIS GO Plus Isotonic Energy Gels - Blackcurrant (30 Pack)

    Science in Sport - SIS

    SIS GO Plus Isotonic Energy Gels - Blackcurrant (30 Pack)
    $94.49 $99.96
  • sis-go-energy-bake-strawberry-single-bar
    Sale

    SIS GO Energy Bake - Strawberry (Single Bar)

    Science in Sport - SIS

    SIS GO Energy Bake - Strawberry (Single Bar)
    $4.39 $4.99
  • sis-go-energy-bake-tiramisu
    Sale

    SIS GO Energy Bake - Tiramisu (Single Bar)

    Science in Sport - SIS

    SIS GO Energy Bake - Tiramisu (Single Bar)
    $4.39 $4.99
  • SIS GO Energy Mini Bar - Banana Fudge
    Sale

    SIS GO Energy Mini Bar - Banana Fudge

    Science in Sport - SIS

    SIS GO Energy Mini Bar - Banana Fudge
    $2.89 $2.99