SiS believe that the most sophisticated piece of sports equipment you’ll ever own is your body. If you don’t put high performance sports nutrition in, you won’t get your full potential out.
Their range of products are researched and developed by sports scientists in conjunction with international athletes. This scientific research underpins everything we do to ensure that all our products meet the exacting standards of Informed Sport. This means that everything we do and every personal best you achieve with us, is FUELLED BY SCIENCE.

SiS Shaker Bottle (700ml)
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Original Price
£7.00
Current Price
£6.50
WORLD-RENOWNED SUPPLEMENT BOTTLE FOR POWDERED SPORTS NUTRITION
The Original Buch Steiner MixMaster Shaker®, our feature-packed SiS-branded Protein Shaker is a convenient and portable leakproof sports bottle designed for the easy mixing and drinking of SiS powdered drinks supplements.
WHY YOU SHOULD USE OUR PROTEIN SHAKER
Whether you have one or a few, our SiS Protein Shaker is your most convenient companion for fuelling, rebuilding and recovering after intense exercise. Leave one at home and throw one in your gym bag because our shaker is leakproof to ensure no mess is made while mixing or storing water or milk-based fluids. It also has an integrated spout in the screw-top lid for easy drinking directly after mixing.
The shaker bottle has a patented mesh insert proven to mix powders with ease without leaving you with lumpy fluid, plus it has an integrated measuring scale on the side of the bottle to help with mixing accurate amounts so you can ensure to get the right macro-nutrients.
Manufactured by German company, Buchsteiner, the instantly recognisable MixMaster Shaker is made from the highest quality ingredients and is used by athletes the world over.
- The Original Buch Steiner MixMaster Shaker®
- Large 700ml capacity
- Secure screw-top lid
- Incorporated drinking spout for convenient drinking
- 100% leakproof
- Integrated measuring scale for accurate dispensing
- Mesh insert for effective mixing
- Easy to clean
- Dishwasher safe
- Used worldwide by athletes