Is 40 x 30 x 20 cm bag profitable to sell on Amazon United Kingdom?

The niche generates £231K/yr across 61 tracked products. 23 of 28 products launched in the last 360 days are still selling. 90-day search growth is +8.1%. Flapen's verdict: Worth a look (57/100).

How competitive is the 40 x 30 x 20 cm bag niche?

25 brands and 31 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 49% of demand.

What do buyers complain about in 40 x 30 x 20 cm bag?

Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 2.1%.

What does it cost to enter the 40 x 30 x 20 cm bag niche?

Listings span £8.41–£32.27; the average listing price is £16.67 (sweet spot $15–$100). The average incumbent carries 2,929 reviews — the moat a new listing must climb.

40 x 30 x 20 cm bag

Worth a look

Shows no brand lock-in (top 5 brands take 49% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Brand share

Great49%

top-5 brand share — no brand owns this niche

Competition

Great31%

top-5 click share — an open shelf

Avg price

Great£16.67

avg listing price — sweet spot $15–$100

Returns

Good2.1%

return rate — above 5% kills the launch gate

Price range

Good£8.41–£32.27

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

Market size

Okay£231K

£231K/yr · 482K searches

Conversion

Okay2.9%

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

Review moat

Okay2,928.98

avg incumbent reviews — the moat a new listing must climb

Growth

Okay+8.1%

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

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Signals No Dominant Brand

According to Flapen's Amazon United Kingdom niche tracking, 40 x 30 x 20 cm bag is a £231K/yr Amazon United Kingdom market (482K searches/yr). The top 5 brands hold 49% of demand. Verdict: Worth a look — 57/100.

Data updated Jul 23, 2026 · scored weekly · How we score niches

40 x 30 x 20 cm bag market data

Units sold / yr: 13K–15K; avg 250–500/product
Revenue / yr: £208K–£250K; units × avg price
Conversion rate: 2.9%
Avg BSR: #43
Page quality: 0%
Prime: 90%
Sponsored: 85%
Out of stock: 2.7%
Avg brand age: 37 months
Avg seller age: 177 days

Competition & brand share

Clicks spread well past the top 5 (31% combined) — an open shelf where new products get seen.

Brands

25 falling

Sellers

Top-5 brand share

49%

Top 20: 98%

Top-5 click share

31%

Top 20: 71%

Open market

44%

MATEIN16%
Lossga9%
ETRONIK8%
Taygeer8%
KLOSTAIN8%
Narwey7%

Demand

Weekly Amazon search volume, last 43 weeks — +8.1% search growth over the last 90 days.

Open Trend

Top 40 x 30 x 20 cm bag search terms

ryan air bag 40x30x20127K/yr +0.2%3.4% conv.
underseat cabin bag 40x30x2036K/yr +79.0%1.6% conv.
40x30x20 backpack36K/yr +38.1%2.1% conv.
40 x 30 x 20 cabin bag23K/yr +28.3%1.2% conv.
cabin max 40x30x2029K/yr +1.0%1.0% conv.
backpack 40x30x2032K/yr +7.3%1.7% conv.
ryan air cabin bag 40x30x2021K/yr +17.8%2.9% conv.
cabin bags 40x30x2027K/yr -15.3%1.3% conv.
ryanair underseat bag 40x30x2018K/yr -10.7%2.1% conv.
carry on bag 40x30x2018K/yr +13.0%1.8% conv.

All search terms

Top 40 x 30 x 20 cm bag 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 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Taygeer for New Ryanair Cabin Bags 40x30x20 Underseat Travel Backpack Cabin Size Rucksack for Plane Hand Luggage Backpack for Travelling Ryan Air Cabin Bag 40x30x20 with Separate Shoe Pouch Black

Taygeer£15.704.6★10,647 rev

MATEIN for New Ryanair Cabin Bags 40x30x20 Underseat 24L TSA Travel Backpack Cabin Size with Wet Pocket Ryan Air Bag 40x30x20 Carry On Backpack for Women Fits 15.6 Inch Laptop Peacock Green

MATEIN£14.944.7★217 rev

KLOSTAIN Ryanair Cabin Bags 40x30x20 Underseat 24L Laptop Hand Luggage Carry-On Bag Travel Backpack Fits easyJet Eurowings Wizz Air Black

KLOSTAIN£20.824.6★7,591 rev

MATEIN for New Expandable Ryanair Cabin Bags 40x30x20 Underseat Travel Rucksack Cabin Size Ryan Air Bag 40x30x20 Under Seat Flight Backpack Casual Daypacks Hand Luggage Backpack for Travel Black

MATEIN£14.144.7★1,572 rev

WENIG Ryanair Cabin Bags 40x30x20 Underseat 24L Small Travel Backpack Cabin Size Rucksack for Plane Hand Luggage Backpack Flight Bag Ryan Air Cabin Bag Fit 14 Inch Laptop with USB Charging Port-Black

WENIG£15.304.6★6,869 rev

Newest

by launch date

MATEIN for Ryan Air Cabin Bag 40x30x20 Ryanair Underseat Bag 40x30x20 with Wet Pocket Travel Rucksack Cabin Size Water Resistant Carry On Backpack Perfect for Flights and Weekend Travel White

MATEIN£18.8276 rev

3mo ago

MATEIN for New Ryanair Cabin Bags 40x30x20 Underseat 24L TSA Travel Backpack Cabin Size with Wet Pocket Ryan Air Bag 40x30x20 Carry On Backpack for Women Fits 15.6 Inch Laptop Peacock Green

MATEIN£14.94217 rev

3mo ago

ZOMFELT Ryanair Cabin Bags 40x30x20 Underseat Travel Backpack Cabin Size with Wet Pocket Travel Rucksack Hand Luggage Bag Flight Carry on Bag for Wizzair Easyjet Fit 15.6 Inch Laptop Black

ZOMFELT£12.89168 rev

4mo ago

Narwey for Ryanair Cabin Bags 40x30x20 Underseat Ryan Air Hospital Bag Foldable Travel Duffel Carry on Hand Luggage Weekend Bag for Women and Men 20L (Black)

Narwey£12.87150 rev

4mo ago

Ryanair Cabin Bags 40x30x20 Underseat 24L Small Travel Backpack Cabin Size Rucksack for Plane Hand Luggage Backpack Carry on Bag for Airplanes Ryan Air Cabin Bag 40x30x20 with USB Charging Port-Black

PUSLOM£14.461,252 rev

9mo ago

What buyers say about 40 x 30 x 20 cm bag

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

What buyers love

Size-Overall18%

“Great bag as it fits quite a lot”

Quality-Overall16%

“Amazing quality”

Pockets/Compartments12%

“lots of pockets”

Value For Money10%

“Excellent value”

Portability6%

“its quite portable”

Advertised Vs Actual Product5%

“As described”

Storage Capacity5%

“Great capacity”

Strength3%

“Good sturdy bag”

Weight Light3%

“Nice lightweight backpack”

Comfort-Overall3%

“Comfortable”

What buyers complain about

Size-Overall21%

“Just too small”

Quality-Overall6%

“Low quality”

Advertised Vs Actual Product5%

“Not as described”

Durability4%

“Poor durability”

Strength4%

“Cheap fragile”

Zipper Quality4%

“the zip has come off”

Value For Money3%

“Cheap price”

Strap/String Quality3%

“The straps are not the best to be honest”

Stitch/Finish/Polish2%

“Weak stitching, burst on first use”

Weight Heavy2%

“too heavy in itself”

Top return reasons

Size-Overall50%

Quality-Overall11%

Wrong Dimensions5%

Material Quality4%

Zipper Quality3%

Strength3%

Color3%

Advertised Vs Actual Product3%

Strap/String Quality2%

Pockets/Compartments2%

Common questions

Is 40 x 30 x 20 cm bag profitable to sell on Amazon United Kingdom?: The niche generates £231K/yr across 61 tracked products. 23 of 28 products launched in the last 360 days are still selling. 90-day search growth is +8.1%. Flapen's verdict: Worth a look (57/100).
How competitive is the 40 x 30 x 20 cm bag niche?: 25 brands and 31 sellers compete. The top 5 products take 31% of clicks and top 5 brands hold 49% of demand.
What do buyers complain about in 40 x 30 x 20 cm bag?: Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 2.1%.
What does it cost to enter the 40 x 30 x 20 cm bag niche?: Listings span £8.41–£32.27; the average listing price is £16.67 (sweet spot $15–$100). The average incumbent carries 2,929 reviews — the moat a new listing must climb.