Best Selling Knix Period Swimwear: See Top Product Rankings by Sales Volume & Market Trends

July 2026
139 Products Tracked

Looking for the most popular knix period swimwear products in the market? Our report leverages real Amazon monthly sales data to identify the best-performing products and the fastest-growing opportunities within the search results for the keyword "knix period swimwear." Whether you're searching for winning products to launch or monitoring market trends and competitor performance, this report provides the insights you need.

Based on monthly sales analytics, our Shoppers' Top Picks highlights that ASIN B0BN7XV7D4 currently leads the knix period swimwear market with 2K monthly sales, followed closely by B0CB36TWNG with 2K monthly sales and B0D39Z6BZR with 2K monthly sales. Meanwhile, ASIN B0BPM2ZGQ3 stands out as the fastest-growing product, achieving an impressive 50.0% month-over-month sales growth. By tracking competitor sales performance and shifts in market demand, sellers can uncover emerging opportunities and make more informed product and marketing decisions.

🏆Shoppers' Top PicksAmazon
by monthly sales July 2026
Period Swimwear Leakproof Bikini Swim Bottoms Proof Menstrual Bathing Suit Bottoms for Teens Girls Women
1
B0BN7XV7D4
$19.99·
4.3
Units/sold2K
Beautikini Period Swimwear Menstrual Leakproof Swim Shorts Quick Dry 3" High Waist Bathing Suit Bottoms for Teen Girls Women
2
B0CB36TWNG
$33.29·
4.5
Units/sold2K
Period Swim Bottoms Leakproof Period Swimwear for Women and Teens Menstrual Swimwear Period Underwear for Swimming
3
B0D39Z6BZR
$14.99·
4.5
Units/sold2K
🚀Fastest Growing
by MoM sales growth
Heavy Flow Period Swimwear for Teens & Women - 4-Layer Leakproof Period Swim Bottom - Discreet & Odor-Free – Eva Black
#1
B0BPM2ZGQ3
$30.95·
4.5
Heavy Flow Period Swimwear for Teens & Women - 4-Layer Leakproof Period Swim Bottom - Discreet & Odor-Free – Eva Black
Units/sold
1K50.0%
Period Swimwear Shorts Leakproof Menstrual Swim Bathing Suit Built in Bikini Bottom Waterproof UV 50 Teens Girl Women
#2
B0CRNWGQ97
$23.39·
4.4
Period Swimwear Shorts Leakproof Menstrual Swim Bathing Suit Built in Bikini Bottom Waterproof UV 50 Teens Girl Women
Units/sold
1K17.0%

Top Selling Knix Period Swimwear

As of July 2026, we analyzed 139 tracked products in Amazon's "knix period swimwear" search results and generated the following sales chart and product rankings based on monthly sales data. The ranking below highlights the Top 10 products by estimated monthly sales. According to the latest data, these products generated between 900 and 2,000 monthly sales. B0BN7XV7D4 leads the knix period swimwear market with an estimated 2,000 monthly sales, up 9.0% from the previous month.

139Products Tracked
1,290Top 10 Avg. Sales
$21.81Top 10 Avg. Price
4.4Top 10 Avg. Rating
🏆
Period Swimwear Leakproof Bikini Swim Bottoms Proof Menstrual Bathing Suit Bottoms for Teens Girls Women
#1
B0BN7XV7D4

Period Swimwear Leakproof Bikini Swim Bottoms Proof Menstrual Bathing Suit Bottoms for Teens Girls Women

2,000
▲ 9.0%
Units Sold/mo
$19.99
Price
4.3
Rating
1.9K
Reviews
2
Beautikini Period Swimwear Menstrual Leakproof Swim Shorts Quick Dry 3" High Waist Bathing Suit Bottoms for Teen Girls Women
B0CB36TWNG
$33.29
4.5 (837)
Beautikini Period Swimwear Menstrual Leakproof Swim Shorts Quick Dry 3" High Waist Bathing Suit Bottoms for Teen Girls Women
2,000 Units Sold/mo▲ 2.3%
3
Period Swim Bottoms Leakproof Period Swimwear for Women and Teens Menstrual Swimwear Period Underwear for Swimming
B0D39Z6BZR
$14.99
4.5 (203)
Period Swim Bottoms Leakproof Period Swimwear for Women and Teens Menstrual Swimwear Period Underwear for Swimming
2,000 Units Sold/mo▲ 4.0%
4
OVRUNS Period Swimwear Bikini Menstrual Leakproof Swim Bottoms Waterproof UV 50+ Light Flow for Teens Girls Women
B0BPDBDKGK
$16.99
4.2 (567)
OVRUNS Period Swimwear Bikini Menstrual Leakproof Swim Bottoms Waterproof UV 50+ Light Flow for Teens Girls Women
1,000 Units Sold/mo▲ 9.0%
5
Heavy Flow Period Swimwear for Teens & Women - 4-Layer Leakproof Period Swim Bottom - Discreet & Odor-Free – Eva Black
B0BPM2ZGQ3
$30.95
4.5 (909)
Heavy Flow Period Swimwear for Teens & Women - 4-Layer Leakproof Period Swim Bottom - Discreet & Odor-Free – Eva Black
1,000 Units Sold/mo▲ 50.0%
10
Period Swimwear Leakproof Menstrual Bikini Waterproof Bottom UPF 50+ Swim Brief Light Flow - Teens Girls Women
B0BQ2WCC51
$14.98
4.3 (944)
Period Swimwear Leakproof Menstrual Bikini Waterproof Bottom UPF 50+ Swim Brief Light Flow - Teens Girls Women
900 Units Sold/mo▲ 9.0%
View All 139 Products & Deep InsightsGet full access to sales data, trends, and market analysis

For sellers and category managers benchmarking the knix period swimwear price landscape, we segmented all 139 tracked listings in Amazon's live "knix period swimwear" search results across the full price spectrum, and surfaced the top 3 price tiers by share below to highlight where competition concentrates and where pricing gaps exist.

Leading the distribution, the $20.00 ~ $50.00 band is the category's best knix period swimwear price zone, absorbing 71% of the assortment (866 products) — this is where listing density is highest and where new entrants face the steepest competition for share-of-voice. Use the tier breakdown below to identify the top-ranking ASIN, monthly sales velocity, and rating profile within each band — essential inputs for pricing strategy, sourcing decisions, and competitive benchmarking in the knix period swimwear category.

Top 3 Price Tiers

$20.00 ~ $50.00 is the most competitive price tier, containing 71% of tracked products.

Sweet Spot
$20.00 ~ $50.00
Tier 1
71%
866 products

Top products in this price tier

#1
B0BN7XV7D4
$19.99
2k Units Sold/mo
Unlock Top Performers
#2
$10.00 ~ $20.00
Tier 2
19%
236 products
$50.00 ~ $100.00
Tier 3
7%
90 products
$0.00 ~ $10.00
2%
Unlock to view all price tier distributions and their ASIN sales contributions

"Knix period swimwear" Search Volume and Market Trends on Amazon

Amazon keyword search volume data for "knix period swimwear" in the US marketplace. This report provides insights into keyword search volume, Amazon search trends, competition levels, and conversion efficiency for sellers and brands.

During the week of 2026-07-12 to 2026-07-18, the Amazon USweekly search volume for "knix period swimwear" was approximately 2,308 searches. The keyword currently holds an Amazon Search Frequency Rank (SFR) of #92,194, dropping 22,719 positions from the previous week. Additionally, the top 3 products for this keyword capture 24.5% of the total click share and 3.5% of the conversion share, indicating the level of market concentration.

Amazon Search Term
Weekly

knix period swimwear

ASINSIGHT
Search Frequency Rank
92,194
22,719
Search Volume
2,308
31.8%
Top 3 Click Share
24.5%
Top 3 Conv. Share
3.5%

Search Volume Trend

Past 3 Years
Past 4 Months
Recent 8 months
Weekly Search Volume
2,308
View full trends for the past 3 years
JulAugSepOctNovDecJanFebMarAprMayJunJul
Multi-Dimensional Data

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