---
title: "Foster Grant Sunglasses — $5K/mo Amazon US Product Research"
canonical_url: "https://flapen.com/research/us/clothing-shoes-jewelry/foster-grant-sunglasses"
last_updated: "2026-08-12T17:51:12.230Z"
locale: en
meta:
description: "Amazon product research for foster grant sunglasses: $5K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:description": "Amazon product research for foster grant sunglasses: $5K/mo market, demand, competition, pricing, reviews & the verdict. Know if it's worth selling — Flapen."
"og:title": "Foster Grant Sunglasses — $5K/mo Amazon US Product Research"
---
# **Foster Grant Sunglasses**
**Worth a look**
Shows a fragmented shelf (top 5 take 9% of clicks), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 15Growth 81Conversion 17Competition 98Returns 43Price range 20Avg price 95Brand share 96Review moat 35Quality gap 67
**Competition**
**Incredible****9%**
top-5 click share — an open shelf
**Brand share**
**Incredible****32%**
top-5 brand share — no brand owns this niche
**Avg price**
**Incredible****$31.00**
avg listing price — sweet spot $15–$100
**Growth**
**Great****+74.2%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Good****4.3★**
avg incumbent rating — lower means beatable quality
**Returns**
**Okay****3.6%**
return rate — above 5% kills the launch gate
**Review moat**
**Okay****3,029.28**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Bad****$8.93–$430.54**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****1.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$62K**
$62K/yr · 146K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
## **Is foster grant sunglasses profitable on Amazon?**
According to Flapen's Amazon United States niche tracking, foster grant sunglasses is a $62K/yr Amazon United States market (146K searches/yr). The top 5 brands hold 32% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 59/100.
Data updated Jul 12, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **foster grant sunglasses market size & sales**
Units sold, revenue, conversion and listing quality across the tracked shelf.
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$62K–$78K**
- units × avg price
- **Conversion rate**
- **1.4%**
- **Avg BSR**
- **#1,445**
- **Page quality**
- **0%**
- **Prime**
- **96%**
- **Sponsored**
- **79%**
- **Out of stock**
- **4.0%**
- **Avg brand age**
- **55 months**
- **Avg seller age**
- **159 days**
## **Competition: brands, sellers & click share**
Clicks spread well past the top 5 (9% combined) — an open shelf where new products get seen.
**Brands**
**118 **▲rising
**Sellers**
**169**
**Top-5 brand share**
**32%**
Top 20: 62%
**Top-5 click share**
**9%**
Top 20: 23%
**Open market**
**69%**
- Foster Grant12% - KALIYADI5% - goodr4% - Peppers4% - Jcerki3% - WearMe Pro3%
## **foster grant sunglasses demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +74.2% search growth over the last 90 days.
13K8KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 2.5×
[**Open Trend **](https://flapen.com/research/us/clothing-shoes-jewelry/foster-grant-sunglasses/trend)
## **Top foster grant sunglasses search terms shoppers use**
The exact queries shoppers type, with yearly volume, growth and conversion.
- **nearsighted sunglasses**39K/yr+92.4%0.5% conv. - **foster grant sunglasses for men**34K/yr+35.5%2.0% conv. - **peppers sunglasses**18K/yr+96.0%1.3% conv. - **prescription sunglasses men**6K/yr+45.2%0.1% conv. - **foster grant sunglasses polarized**8K/yr+83.9%1.6% conv. - **water sunglasses**6K/yr+336.2%1.1% conv. - **eddie bauer sunglasses**6K/yr+60.4%1.3% conv. - **piranha sunglasses for men**8K/yr-0.6%2.0% conv. - **wrangler sunglasses**3K/yr+178.3%0.4% conv. - **foster grant polarized sunglasses for men**4K/yr+89.5%2.5% conv. [**All search terms **](https://flapen.com/research/us/clothing-shoes-jewelry/foster-grant-sunglasses/search-terms)
## **Top foster grant sunglasses products & what they sell for**
Every tracked product — its share of the shelf, its review moat, and what it sells for.
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%1%$6152%$1K3%$2K4%$2K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
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
[1**Swim Goggles 2 Pack Wide View Anti Fog&UV Swimming Goggles for Audlt No Leaking Swim Glasses for Men Women Youth**Rantizon**$15.62**4.4★7,024 rev](https://www.amazon.com/dp/B0BTLXZ8FH) [2**KALIYADI Polarized Sunglasses Men Lightweight Mens Sunglasses Polarized UV Protection Driving Fishing Golf (Black/Ice Blue/Red)**KALIYADI**$18.09**4.5★13,678 rev](https://www.amazon.com/dp/B0BWTW5DX2) [3**Jcerki Polarizing Nearsighted Sunglasses Tinted Gray -1.00 Strengths Men Women Myopia Distance Glasses **These Are Not Reading Glasses**Jcerki**$25.52**4.1★190 rev](https://www.amazon.com/dp/B07NS88L58) [4**Foster Grant mens Jace Polarized for Digital Sunglasses Sunglasses Matte Black and Navy 54mm US**Foster Grant**$26.97**4.4★260 rev](https://www.amazon.com/dp/B09LBFCM87) [5**Foster Grant 1960s Sunglasses Black 54mm**Foster Grant**$27.33**4.3★165 rev](https://www.amazon.com/dp/B09KT6NB5W)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**goodr Operation: Blackout Polarized Aviator Sunglasses for Men & Women Large Sized (Mach G) Black Solid Frame with Black Non-Reflective Glare Reducing Lenses UV400 Protection No Slip No Bounce**goodr**$37.62**1,788 rev6mo ago](https://www.amazon.com/dp/B0GD2MP7L8) [**goodr Going to Valhalla...Witness! Polarized Sunglasses for Men & Women Medium Sized (OG) Dark Gray Translucent Frames with Chrome Mirrored Reflective Lenses UV400 Protection No Slip**goodr**$26.36**9,018 rev1y ago](https://www.amazon.com/dp/B0FGFPLQFH) [**KUGUAOK 4PACK Polarized Aviator Sunglasses for Women Men Sports Style UV400 Protection Running Sun Glasses Vintage Trendy Shades**KUGUAOK**$19.87**464 rev1y ago](https://www.amazon.com/dp/B0F2DPVCQ3) [**KALIYADI Mens Sun-Glasses Polarized Sunglasses-Men: Classic Sunglasses with Ultraviolet Protection for Driving Fishing Golf**KALIYADI**$19.99**852 rev1y ago](https://www.amazon.com/dp/B0DFY3K6KJ) [**goodr Flamingos on a Booze Cruise Polarized Sunglasses Medium Sized (OG) Pink Translucent Frames with Teal Mirored Reflective Lens UV400 Protection No Slip No Bounce**goodr**$26.03**618 rev2y ago](https://www.amazon.com/dp/B0D7WV59NK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**goodr Operation: Blackout Polarized Aviator Sunglasses for Men & Women Large Sized (Mach G) Black Solid Frame with Black Non-Reflective Glare Reducing Lenses UV400 Protection No Slip No Bounce**goodr**$37.62**4.7★**▲ 80%**](https://www.amazon.com/dp/B0GD2MP7L8) [**goodr Going to Valhalla...Witness! Polarized Sunglasses for Men & Women Medium Sized (OG) Dark Gray Translucent Frames with Chrome Mirrored Reflective Lenses UV400 Protection No Slip**goodr**$26.36**4.7★**▲ 79%**](https://www.amazon.com/dp/B0FGFPLQFH) [**goodr Flamingos on a Booze Cruise Polarized Sunglasses Medium Sized (OG) Pink Translucent Frames with Teal Mirored Reflective Lens UV400 Protection No Slip No Bounce**goodr**$26.03**4.7★**▲ 79%**](https://www.amazon.com/dp/B0D7WV59NK) [**KUGUAOK 4PACK Polarized Aviator Sunglasses for Women Men Sports Style UV400 Protection Running Sun Glasses Vintage Trendy Shades**KUGUAOK**$19.87**4.4★**▲ 74%**](https://www.amazon.com/dp/B0F2DPVCQ3) [**KALIYADI Sunglasses Men Polarized Sun glasses for Mens Womens Classic Matte Black Frame UV Protection 3pack(Grey)**KALIYADI**$14.49**4.6★**▲ 66%**](https://www.amazon.com/dp/B0995MYSRN)
**~~View all trending →~~**
## **What reviews say buyers love and hate about foster grant sunglasses**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**23%
*“great buy for the money”*
**Quality-Overall**19%
*“Great quality glasses”*
**Size-Overall**14%
*“Awesome fit”*
**Comfort-Overall**9%
*“Comfortable to wear”*
**Weight Light**5%
*“These glasses are also exceptionally lightweight”*
**Color**5%
*“Color is perfect”*
**Advertised Vs Actual Product**4%
*“As Advertised”*
**Shape/Style**4%
*“Great style”*
**Durability**3%
*“The material felt durable”*
**Strength**1%
*“Well built”*
### **What buyers complain about **
**Size-Overall**18%
*“Bigger than expected”*
**Quality-Overall**15%
*“Very cheap quality”*
**Durability**13%
*“Broke almost immediately”*
**Value For Money**6%
*“Way too expensive”*
**Strength**4%
*“Little flimsy”*
**Color**3%
*“I wish it was darker”*
**Advertised Vs Actual Product**3%
*“Not as advertised”*
**Material Quality**3%
*“The material is very flimsy and low quality”*
**Comfort-Overall**2%
*“For everyday wear that may be more tolerable”*
**Functionality-Overall**1%
*“nothing works”*
### **Top return reasons **
**Size-Overall**62%
**Shape/Style**7%
**Advertised Vs Actual Product**6%
**Color**5%
**Quality-Overall**4%
**Value For Money**3%
**Width**2%
**Comfort-Overall**2%
**Functionality-Overall**1%
**Material Quality**1%
## **Common foster grant sunglasses questions**
- **Is foster grant sunglasses profitable to sell on Amazon United States?**
- The niche generates $62K/yr across 321 tracked products. 22 of 37 products launched in the last 360 days are still selling. 90-day search growth is +74.2%. Flapen's verdict: Worth a look (59/100).
- **How competitive is the foster grant sunglasses niche?**
- 118 brands and 169 sellers compete. The top 5 products take 9% of clicks and top 5 brands hold 32% of demand.
- **What do buyers complain about in foster grant sunglasses?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Durability. The return rate is 3.6%.
- **When does demand for foster grant sunglasses peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 2.5× the quietest.
- **What does it cost to enter the foster grant sunglasses niche?**
- Listings span $8.93–$430.54; the average listing price is $31.00 (sweet spot $15–$100). The average incumbent carries 3,029 reviews — the moat a new listing must climb.
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