---
title: "dr browns straw cup conversion kit — Niche Verdict: Skip it (35/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/baby-products/dr-browns-straw-cup-conversion-kit"
last_updated: "2026-07-13T22:25:44.173Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 97% of clicks) — dr browns straw cup conversion kit doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 97% of clicks) — dr browns straw cup conversion kit doesn't clear our bar today."
  "og:title": "dr browns straw cup conversion kit — Niche Verdict: Skip it (35/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **dr browns straw cup conversion kit**

**Skip it**

Brand-locked demand (top 5 brands take 97% of clicks) — this niche doesn't clear our bar today.

Market size 19Growth 22Conversion 71Competition 49Returns 66Price range 23Avg price 38Brand share 8Review moat 24Quality gap 27

**Conversion**

**Good****6.6%**

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

**Returns**

**Good****2.4%**

return rate — above 6% kills the launch gate

**Competition**

**Okay****56%**

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

**Avg price**

**Okay****$10.57**

avg listing price — sweet spot $15–$100

**Quality gap**

**Okay****4.6★**

avg incumbent rating — lower means beatable quality

**Review moat**

**Bad****5,494.57**

avg incumbent reviews — the moat a new listing must climb

**Price range**

**Bad****$5.52–$17.82**

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

**Growth**

**Bad****-5.3%**

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

**Market size**

**Bad****$75K**

$75K/yr · 108K searches

**Brand share**

**Bad****97%**

top-5 brand share — brand-locked demand

## **Competition**

The top 5 products take 56% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**7 **▲rising

**Sellers**

**19**

**Top-5 brand share**

**97%**

**Open market**

**1%**

- Dr. Brown's86% - Nuby4% - Disney2% - BUSOHA2% - BULGILIA2% - NUK2% - Open — no brand owns it (1 brand, 1%)

## **Product shelf**

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

0%10%$8K20%$15K30%$23K40%$30K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

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

All 23 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Dr. Browns Milestones Narrow Sippy Spout Bottle with 100% Silicone Easy-Grip Handles and Soft Sippy Spout 8oz/250mL Light Pink and Ecru 2-Pack 6m+](https://m.media-amazon.com/images/I/31Mv9+lWIKL.jpg)**Dr. Browns Milestones Narrow Sippy Spout Bottle with 100% Silicone Easy-Grip Handles and Soft Sippy Spout 8oz/250mL Light Pink and Ecru 2-Pack 6m+**Dr. Brown's**$9.79**4.7★10,141 rev](https://www.amazon.com/dp/B09ZKKHHHT) [2![Dr. Browns Milestones Narrow Sippy Spout Bottle with 100% Silicone Easy-Grip Handles and Soft Sippy Spout 8oz/250mL Light-Blue and Gray 2-Pack 6m+](https://m.media-amazon.com/images/I/31QUosSkzGL.jpg)**Dr. Browns Milestones Narrow Sippy Spout Bottle with 100% Silicone Easy-Grip Handles and Soft Sippy Spout 8oz/250mL Light-Blue and Gray 2-Pack 6m+**Dr. Brown's**$11.69**4.7★10,141 rev](https://www.amazon.com/dp/B09ZK5BBMQ) [3![Dr. Browns Milestones Wide-Neck Sippy Spout Bottle with Silicone Handles 9oz 270mL 6m+ Light Blue and Gray 2-Pack](https://m.media-amazon.com/images/I/31qQ9+w24nL.jpg)**Dr. Browns Milestones Wide-Neck Sippy Spout Bottle with Silicone Handles 9oz 270mL 6m+ Light Blue and Gray 2-Pack**Dr. Brown's**$13.64**4.7★1,431 rev](https://www.amazon.com/dp/B09ZKQD8NT) [4![Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Blue/Gray 6m+](https://m.media-amazon.com/images/I/317tPEzHfPL.jpg)**Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Blue/Gray 6m+**Dr. Brown's**$12.17**4.3★2,116 rev](https://www.amazon.com/dp/B09BDKT8KZ) [5![Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Gray/Pink 6m+](https://m.media-amazon.com/images/I/31GeBTrBZWL.jpg)**Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Gray/Pink 6m+**Dr. Brown's**$10.86**4.5★4,758 rev](https://www.amazon.com/dp/B09BDHMQBM)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![NUK First Choice Large Learner Cup 2.0 10 oz. Sippy Cup with Handles Spill Proof Leak Proof Soft Straw Cup 2-Pack](https://m.media-amazon.com/images/I/41aciKtL+HL.jpg)**NUK First Choice Large Learner Cup 2.0 10 oz. Sippy Cup with Handles Spill Proof Leak Proof Soft Straw Cup 2-Pack**NUK**$13.11**14,495 rev5mo ago](https://www.amazon.com/dp/B0GBZ1J53N) [![Dr. Browns Preemie Flow Bottle Set Anti-Colic Options+ Baby Bottles with Preemie Flow and Level T Nipples 4oz/120mL 0m+ 3 Pack](https://m.media-amazon.com/images/I/41+JdT3JduL.jpg)**Dr. Browns Preemie Flow Bottle Set Anti-Colic Options+ Baby Bottles with Preemie Flow and Level T Nipples 4oz/120mL 0m+ 3 Pack**Dr. Brown's**$17.82**239 rev1y ago](https://www.amazon.com/dp/B0F7NS9MCX) [![BUSOHA 3 Pack Silicone Sleeves for Avent Baby Bottles - Anti Breakage Baby Bottle Holder with Handle Compatible with Avent Natural Glass Baby Bottles 8 OZ](https://m.media-amazon.com/images/I/41hgUYdkw-L.jpg)**BUSOHA 3 Pack Silicone Sleeves for Avent Baby Bottles - Anti Breakage Baby Bottle Holder with Handle Compatible with Avent Natural Glass Baby Bottles 8 OZ**BUSOHA**$9.94**546 rev1y ago](https://www.amazon.com/dp/B0DK4PC2P1) [![BULGILIA (4 Pack Bottles Handles for Philips Avent Natural Baby Bottle Quick Install & Easy for Little Hands to Hold White](https://m.media-amazon.com/images/I/31HiuDqAK-L.jpg)**BULGILIA (4 Pack Bottles Handles for Philips Avent Natural Baby Bottle Quick Install & Easy for Little Hands to Hold White**BULGILIA**$6.96**259 rev2y ago](https://www.amazon.com/dp/B0CYSTBCQV) [![Dr. Browns Milestones Babys First Straw Cup Training Cup with Weighted Straw 9 oz/270 mL BPA-free 6m+ Dark Blue 1-Pack](https://m.media-amazon.com/images/I/31K0c+Xo-gL.jpg)**Dr. Browns Milestones Babys First Straw Cup Training Cup with Weighted Straw 9 oz/270 mL BPA-free 6m+ Dark Blue 1-Pack**Dr. Brown's**$5.52**14,879 rev3y ago](https://www.amazon.com/dp/B0C54CYDS3)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![NUK First Choice Large Learner Cup 2.0 10 oz. Sippy Cup with Handles Spill Proof Leak Proof Soft Straw Cup 2-Pack](https://m.media-amazon.com/images/I/41aciKtL+HL.jpg)**NUK First Choice Large Learner Cup 2.0 10 oz. Sippy Cup with Handles Spill Proof Leak Proof Soft Straw Cup 2-Pack**NUK**$13.11**4.7★**▲ 272%**](https://www.amazon.com/dp/B0GBZ1J53N) [![Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Pink 6m+](https://m.media-amazon.com/images/I/311xi5V9muL.jpg)**Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Pink 6m+**Dr. Brown's**$6.93**4.5★**▲ 155%**](https://www.amazon.com/dp/B08STD3B6S) [![Dr. Browns Milestones Narrow Sippy Spout Bottle with 100% Silicone Easy-Grip Handles and Soft Sippy Spout 8oz/250mL Light-Blue and Gray 2-Pack 6m+](https://m.media-amazon.com/images/I/31QUosSkzGL.jpg)**Dr. Browns Milestones Narrow Sippy Spout Bottle with 100% Silicone Easy-Grip Handles and Soft Sippy Spout 8oz/250mL Light-Blue and Gray 2-Pack 6m+**Dr. Brown's**$11.69**4.7★**▲ 154%**](https://www.amazon.com/dp/B09ZK5BBMQ) [![Dr. Browns Preemie Flow Bottle Set Anti-Colic Options+ Baby Bottles with Preemie Flow and Level T Nipples 4oz/120mL 0m+ 3 Pack](https://m.media-amazon.com/images/I/41+JdT3JduL.jpg)**Dr. Browns Preemie Flow Bottle Set Anti-Colic Options+ Baby Bottles with Preemie Flow and Level T Nipples 4oz/120mL 0m+ 3 Pack**Dr. Brown's**$17.82**4.7★**▲ 81%**](https://www.amazon.com/dp/B0F7NS9MCX) [![Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Gray & Green 6m+](https://m.media-amazon.com/images/I/31GPiMJzsmL.jpg)**Dr. Browns Milestones Narrow Sippy Straw Bottle Spill-Proof with 100% Silicone Handles and Weighted Straw 8 oz/250 mL Gray & Green 6m+**Dr. Brown's**$10.25**4.3★**▲ 73%**](https://www.amazon.com/dp/B09BDKPFFL)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 101 weeks — -5.3% search growth over the last 90 days.

25K15KSpike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay

Peak months: Jan, Feb, Mar · busiest ÷ quietest = 8.2×

## **Reviews**

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

### **What buyers love **

**Leak-Proof**19%

*“no leaking”*

**Ease Of Use**12%

*“Easy Peasy”*

**Quality-Overall**9%

*“Great quality cup”*

**Ease Of Cleaning**9%

*“keep it clean”*

**Size-Overall**7%

*“The size is also convenient”*

**Handle Quality**5%

*“It is nice to have the choice of using the handles”*

**Value For Money**4%

*“Worth it”*

**Ease Of Feeding**4%

*“Great for independent feeding”*

**Durability**3%

*“still in great condition”*

**Design-Overall**2%

*“Great design”*

### **What buyers complain about **

**Leak-Proof**21%

*“It leaks everywhere”*

**Ease Of Cleaning**11%

*“Hard to clean”*

**Ease Of Use**8%

*“But, its very difficult to use”*

**Functionality-Overall**6%

*“not working properly”*

**Quality-Overall**5%

*“Made cheap”*

**Size-Overall**4%

*“The size is basically a short”*

**Durability**3%

*“But Not Durable”*

**Washability**2%

*“its some complicated to wash and to ensamble”*

**Water Resistance**2%

*“The water is not drinkable”*

**Choking**2%

*“just choked when feeding”*

### **Top return reasons **

**Size-Overall**23%

**Leak-Proof**17%

**Functionality-Overall**12%

**Advertised Vs Actual Product**6%

**Ease Of Use**5%

**Handle Quality**5%

**Age Suitability**5%

**Material Quality**3%

**Defective Material/Parts**3%

**Value For Money**3%