Is hydroflask straw lid profitable to sell on Amazon United Kingdom?

The niche generates £35K/yr across 16 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +24.5%. Flapen's verdict: Skip it (41/100).

How competitive is the hydroflask straw lid niche?

6 brands and 37 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in hydroflask straw lid?

Top complaints mined from reviews: Leak-Proof, Size-Overall, Thickness. The return rate is 2.5%.

When does demand for hydroflask straw lid peak?

Demand peaks in Jul; the busiest month runs 1.5× the quietest.

What does it cost to enter the hydroflask straw lid niche?

Listings span £5.05–£30.87; the average listing price is £13.67 (sweet spot $15–$100). The average incumbent carries 1,576 reviews — the moat a new listing must climb.

hydroflask straw lid

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Conversion

Good5.7%

search→purchase rate — share of searches ending in a sale

Avg price

Good£13.67

avg listing price — sweet spot $15–$100

Returns

Good2.5%

return rate — above 5% kills the launch gate

Price range

Good£5.05–£30.87

cheapest to priciest tracked listing — scored on the share inside $15–$100

Quality gap

Good4.4★

avg incumbent rating — lower means beatable quality

Growth

Good+24.5%

90-day search growth — must beat 0% to launch

Review moat

Okay1,576.13

avg incumbent reviews — the moat a new listing must climb

Competition

Okay66%

top-5 click share — leaders hold, buyers still browse

Market size

Bad£35K

£35K/yr · 44K searches

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United Kingdom niche tracking, hydroflask straw lid is a £35K/yr Amazon United Kingdom market (44K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul. Verdict: Skip it — 41/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

hydroflask straw lid market data

Units sold / yr: 3K–3K; avg 100–250/product
Revenue / yr: £34K–£41K; units × avg price
Conversion rate: 5.7%
Avg BSR: #706
Page quality: 0%
Prime: 100%
Sponsored: 94%
Out of stock: 0.5%
Avg brand age: 32 months
Avg seller age: 169 days

Competition & brand share

The top 5 products take 66% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 rising

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

66%

Top 20: 100%

Open market

Hydro Flask81%
PHULWEL7%
CATELL4%
Generic4%
WK IEASON1%
Amgkonp1%

Demand & seasonality

Weekly Amazon search volume, last 79 weeks — +24.5% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 1.5×

Open Trend

Top hydroflask straw lid search terms

hydroflask straw lid15K/yr +14.9%6.7% conv.
hydro flask straw lid9K/yr +34.5%5.6% conv.
hydroflask lid6K/yr +35.0%4.3% conv.
hydro flask lid6K/yr +27.8%4.7% conv.
hydroflask straw5K/yr +22.7%3.8% conv.
hydro flask straw4K/yr +24.8%2.7% conv.

All search terms

Top hydroflask straw lid products on Amazon

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 16 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Hydro Flask - Flex Straw Cap for Wide Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black

Hydro Flask£10.274.6★7,420 rev

Hydro Flask - Flex Straw Cap for Standard Mouth - Leakproof - Honeycomb Insulated Cap with Flex Strap for Easy Carrying - Dishwasher Safe - Black

Hydro Flask£9.184.5★2,366 rev

Hydro Flask Standard Flex Straw Cap 621 ml (21 oz) Bottle Stainless Steel Leakproof Cupholder Compatible Insulated Cold 24 Hrs Oat Biege

Hydro Flask£23.784.7★740 rev

Hydro Flask - Water Bottle 621 ml (21 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Standard Mouth - Black

Hydro Flask£23.644.7★740 rev

Straw Lid for Hydro Flask Wide Mouth(12oz 18oz 20oz 24oz 32oz 40oz 64oz) Sports Caps Water Bottle Accessories Replacement Lid Top

PHULWEL£13.154.4★102 rev

Newest

by launch date

Straw Lid for Water Bottle Insulated Stainle Steel 1PACK Lids with Straw for Hydroflask 12 16 18 20 32 40 oz Wide Mouth Leak-Proof Drinking Cap with Handle and Lid Brush (White)

Amgkonp£7.442 rev

3mo ago

Hydro Flask Wide Flex Straw Cap Wide Mouth

Hydro Flask£10.111 rev

5mo ago

Hydro Flask Standard Flex Straw Cap 621 ml (21 oz) Bottle Stainless Steel Leakproof Cupholder Compatible Insulated Cold 24 Hrs Oat Biege

Hydro Flask£23.78740 rev

11mo ago

Replacement Plastic Straws Reusable Drinking Starws Compatible with Hydro Flask Water Bottle 18-64oz and Other Brands with 2 Straw Brushes Non Toxic Clear Straws

Generic£5.0581 rev

1y ago

HYDRO FLASK - Wide Mouth Water Bottle 946 ml (32 oz) - Vacuum Insulated Stainless Steel Water Bottle with Flex Straw Cap - Surf

Hydro Flask£30.073,543 rev

1y ago

What buyers say about hydroflask straw lid

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall48%

“Fits perfectly”

Value For Money9%

“Definitely value for money”

Quality-Overall8%

“Nice quality, can be hard to clean”

Advertised Vs Actual Product7%

“Did the job”

Product Condition7%

“its a new bottle”

Ease Of Use6%

“Much nicer to use than just a no-lid hydro flask”

Efficiency4%

“Works well”

Strength4%

“Sturdy”

Leak-Proof2%

“Quality seems great so far, & no leaks”

Dispensing Mechanism1%

“The straw cap is perfect — easy one-handed drinking”

What buyers complain about

Leak-Proof36%

“Leaks”

Size-Overall21%

“don't fit the connector”

Thickness14%

“Also require effort to attach as they are thicker”

Moist/Dry7%

“it will get everything wet”

Compatibility-Overall7%

“Not for Yeti Rambler bottles”

Ease Of Cleaning5%

“However after about a year the scale build up in hard to reach places has made it slightly annoying to clean”

Top return reasons

Size-Overall80%

Leak-Proof4%

Compatibility-Overall3%

Functionality-Overall2%

Advertised Vs Actual Product2%

Color1%

Mechanism Issues1%

Thickness1%

Product Condition1%

Quality-Overall1%

Common questions

Is hydroflask straw lid profitable to sell on Amazon United Kingdom?: The niche generates £35K/yr across 16 tracked products. 1 of 3 products launched in the last 360 days are still selling. 90-day search growth is +24.5%. Flapen's verdict: Skip it (41/100).
How competitive is the hydroflask straw lid niche?: 6 brands and 37 sellers compete. The top 5 products take 66% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in hydroflask straw lid?: Top complaints mined from reviews: Leak-Proof, Size-Overall, Thickness. The return rate is 2.5%.
When does demand for hydroflask straw lid peak?: Demand peaks in Jul; the busiest month runs 1.5× the quietest.
What does it cost to enter the hydroflask straw lid niche?: Listings span £5.05–£30.87; the average listing price is £13.67 (sweet spot $15–$100). The average incumbent carries 1,576 reviews — the moat a new listing must climb.