SIS 800ml Narrow Neck Bottle Yellow - Yellow, 800ml
Product details checked 5 September 2026 · price checked live
Check price on Amazon →Overview
We track Science in Sport SIS 800ml Narrow Neck Bottle Yellow alongside 19 other cycling products, comparing it on rating, how many people have rated it and what it currently costs. According to the listing: Designed to carry fluids or mixed sports nutrition with a practical format that fits easily into training, racing and everyday active routines. Secure construction helps prevent spills, while the easy-to-hold shape supports convenient drinking at home, in the gym or on the move. Those are the seller's own claims rather than our testing, so treat them as a starting point. On Amazon it holds 4.5 out of 5 from 37,995 ratings. What that score is worth next to its rivals is set out below.
- Brand
- Science in Sport
- Amazon rating
- 4.5 / 5 from 37,995 ratings
- vs Cycling
- level with the category median of 4.5
- Rank in category
- 15 of 20 rated cycling we track
- Price position
- Among the cheaper options (category spans £3.77 to £419)
- How proven
- One of the most-reviewed in its category
Price range as of · details
How it compares in Cycling
Across the 20 rated cycling products we track, the typical score is 4.5 out of 5. This one sits at 4.5, which is in the bottom quarter of the category. That does not make it a bad buy, but there are better-rated alternatives on the same shelf, so it needs another reason to earn your money.
It carries 37,995 ratings against a category median of 4,370. A rating from a large base is harder to distort and tends to hold up over time, so a high score here means more than the same score on a new listing.
On price it sits in the lower third of a category running from £3.77 to £419, where the midpoint is about £8.99. Cheaper than most while rating at or above the category norm is the combination worth looking for, and it is the main argument for this one.
Category prices as of · details
Worked out from the 20 cycling products in our catalogue, not from the brand's own claims. How we rank →
Key features, as the manufacturer lists them
Taken from the product listing via Amazon's product API. These are the seller's claims, not our test results.
- Built for Training and Hydration: Designed to carry fluids or mixed sports nutrition with a practical format that fits easily into training, racing and everyday active routines
- Leakproof, Ergonomic Design: Secure construction helps prevent spills, while the easy-to-hold shape supports convenient drinking at home, in the gym or on the move
- Made for Drink Mixes and Water: Suitable for hydration, fuelling and recovery drinks, giving athletes a versatile bottle for workouts, events and busy schedules
- BPA-Free Everyday Use: Durable reusable bottle is BPA free and created for regular use as part of your wider training and performance setup
- You can’t Beat the Science: Every SiS product is driven by research, developed with elite athletes, and tested with precision to deliver reliable, evidence-based performance nutrition for athletes at every level
