Is disposable maternity knickers profitable to sell on Amazon United Kingdom?

The niche generates £458K/yr across 34 tracked products. 3 of 7 products launched in the last 360 days are still selling. 90-day search growth is -9.2%. Flapen's verdict: Worth a look (60/100).

How competitive is the disposable maternity knickers niche?

14 brands and 115 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 88% of demand.

What do buyers complain about in disposable maternity knickers?

Top complaints mined from reviews: Size-Overall, Leak-Proof, Quality-Overall. The return rate is 0.1%.

When does demand for disposable maternity knickers peak?

Demand is steady year-round — the busiest month runs 1.5× the quietest.

What does it cost to enter the disposable maternity knickers niche?

Listings span £4.83–£50.26; the average listing price is £18.21 (sweet spot $15–$100). The average incumbent carries 3,971 reviews — the moat a new listing must climb.

disposable maternity knickers

Worth a look

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Avg price

Great£18.21

avg listing price — sweet spot $15–$100

Conversion

Great8.2%

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

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Price range

Great£4.83–£50.26

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

Competition

Good45%

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

Market size

Good£458K

£458K/yr · 307K searches

Brand share

Okay88%

top-5 brand share — brands hold most of the demand

Review moat

Okay3,971.47

avg incumbent reviews — the moat a new listing must climb

Growth

Bad-9.2%

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

According to Flapen's Amazon United Kingdom niche tracking, disposable maternity knickers is a £458K/yr Amazon United Kingdom market (307K searches/yr). The top 5 brands hold 88% of demand. Verdict: Worth a look — 60/100.

Data updated Jul 24, 2026 · scored weekly · How we score niches

disposable maternity knickers market data

Units sold / yr: 25K–30K; avg 500–750/product
Revenue / yr: £455K–£546K; units × avg price
Conversion rate: 8.2%
Avg BSR: #90
Page quality: 0%
Prime: 100%
Sponsored: 74%
Out of stock: 2.3%
Avg brand age: 40 months
Avg seller age: 160 days

Competition & brand share

The top 5 products take 45% of clicks — established leaders, but buyers still shop beyond them.

Brands

14 rising

Sellers

115

Top-5 brand share

88%

Top 20: 100%

Top-5 click share

45%

Top 20: 86%

Open market

10%

Always Discreet61%
Mollis13%
ZVZK9%
Frida Mom2%
Whisper2%
Mooncup2%
Open — no brand owns it (8 brands, 10%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.2% search growth over the last 90 days.

No pronounced peak months · busiest ÷ quietest = 1.5×

Open Trend

Top disposable maternity knickers search terms

always discreet underwear149K/yr -15.7%8.5% conv.
always discreet pants37K/yr -15.4%7.5% conv.
disposable period underwear16K/yr -5.0%1.8% conv.
always pants14K/yr -5.4%5.7% conv.
mollis disposable period pants10K/yr +5.9%6.2% conv.
period diapers9K/yr +26.0%1.8% conv.
always discreet incontinence pants women6K/yr -2.8%7.4% conv.
discreet pants for women7K/yr -0.2%5.6% conv.
disposable period pants8K/yr +1.1%2.8% conv.
always discreet boutique8K/yr -7.8%6.5% conv.

All search terms

Top disposable maternity knickers 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

Always Discreet Boutique Incontinence Pants Plus Large Black 8pk

Always Discreet£7.444.4★2,571 rev

Always Discreet Incontinence Pants Medium Disposable Underwear UK Size 8-14 White Absorbency 6 48 Underwear Knickers (12 x 4 Packs) Bladder Leak Protection Maternity Postpartum

Always Discreet£28.604.5★6,835 rev

ZVZK Period Pants Heavy Flow 30ML Absorbent Women Leak Proof Panty Period Knickers Menstrual Underwear 3 Pack (M Pack of 3)

ZVZK£13.564.2★3,582 rev

Always Discreet Boutique Incontinence Pants Women Medium Size Black 18 High Absorbency Plus Pants (9 x 2 Packs) Odour Neutraliser Softness and Protection For Sensitive Bladder

Always Discreet£15.264.4★2,571 rev

Always Discreet Incontinence Pants Women Large Plus 32 High Absorbency (8 x 4 Packs) Odour Neutraliser Saving Pack Dress Size 16-22 for Sensitive Bladder

Always Discreet£28.984.5★6,835 rev

Newest

by launch date

Flo Period underwear Heavy Flow Organic Cotton Reusable + Washable Period Underwear UK 8 EU 36 US 4

FLO£20.0654 rev

7mo ago

Always Discreet Maximum Protection XL 2x10 ct

Always Discreet£22.8270 rev

8mo ago

Always Discreet Incontinence Pant Maximum Protection 8 Drops Size L 4x12 Counts with Odour Neutralising Technology

Always Discreet£50.2670 rev

8mo ago

SUNKISS Incontinence Pants Women Ultra Thin & Fast-Absorbing Postpartum Disposable Underwear UK Size 6-16Maternity Knickers Small/Medium White 20 Count

SUNKISS£9.96552 rev

10mo ago

Always Discreet Maximum Protection L 4x8ct

Always Discreet£31.0170 rev

1y ago

What buyers say about disposable maternity knickers

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

What buyers love

Comfort-Overall27%

“Most comfortable”

Quality-Overall16%

“Excellent product”

Size-Overall12%

“Fit is as expected”

Value For Money11%

“Good price”

Leak-Proof5%

“they didn't leak”

Absorbency3%

“Very absorbent”

Soft Feel3%

“The cotton feels soft and breathable and they dont feel bulky once on”

Ease Of Use2%

“Quick and convenient”

Advertised Vs Actual Product2%

“Does the job”

Thickness1%

“not bulky like the massive pads they give you in hospital”

What buyers complain about

Size-Overall24%

“They do not fit”

Leak-Proof14%

“Leaking”

Quality-Overall11%

“Very poor quality and they leak”

Thickness4%

“I founds them a bit bulky”

Allergies4%

“which starts out as an itchy rash”

Value For Money3%

“Waste of money”

Smell3%

“They're slightly perfumed”

Absorbency3%

“more importantly not as absorbent as I need”

Weight Heavy3%

“These are very bulky”

Stretchability/Expandability/Elasticity2%

“Holes and elastic falling apart after few washes”

Top return reasons

Size-Overall100%

Common questions

Is disposable maternity knickers profitable to sell on Amazon United Kingdom?: The niche generates £458K/yr across 34 tracked products. 3 of 7 products launched in the last 360 days are still selling. 90-day search growth is -9.2%. Flapen's verdict: Worth a look (60/100).
How competitive is the disposable maternity knickers niche?: 14 brands and 115 sellers compete. The top 5 products take 45% of clicks and top 5 brands hold 88% of demand.
What do buyers complain about in disposable maternity knickers?: Top complaints mined from reviews: Size-Overall, Leak-Proof, Quality-Overall. The return rate is 0.1%.
When does demand for disposable maternity knickers peak?: Demand is steady year-round — the busiest month runs 1.5× the quietest.
What does it cost to enter the disposable maternity knickers niche?: Listings span £4.83–£50.26; the average listing price is £18.21 (sweet spot $15–$100). The average incumbent carries 3,971 reviews — the moat a new listing must climb.