U by Kotex | Thinx Period Undies keep you protected from the heavy flow days, to the light flow days. Providing up to 12-hours of protection, with our Anti-Leak Tech, these super-comfy undies will protect you from leaks for all flows, all day long.
U by Kotex | Thinx Period Undies keep you protected from the heavy flow days, to the light flow days. Providing up to 12-hours of protection, with our Anti-Leak Tech, these super-comfy undies will protect you from leaks for all flows, all day long.
in 33 offers
The lowest price for U by Kotex Period Undies Heavy Black Size 18 right now is $18.99 at tuckerfresh.com.au, compared across 16 retailers.
The all-time low was $15.00 on 12 Aug 2025 — today's price is 27% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 10 June 2026.
U by Kotex Period Undies Heavy Black Size 18
U by Kotex | Thinx Period Undies keep you protected from the heavy flow days, to the light flow days. Providing up to 12-hours of protection, with our Anti-Leak Tech, these super-comfy undies will protect you from leaks for all flows, all day long.
U by Kotex | Thinx Period Undies keep you protected from the heavy flow days, to the light flow days. Providing up to 12-hours of protection, with our Anti-Leak Tech, these super-comfy undies will protect you from leaks for all flows, all day long.
Last updated at 10/06/2026 11:02:31
U by Kotex Thinx Period Undies Black Briefs Size 16 Heavy
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U by Kotex Thinx Period Undies Black Briefs Size 20 Heavy
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U by Kotex Thinx Period Undies Black Briefs Size 18 Heavy
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U by Kotex Period Undies Black Full Brief Heavy Size 14
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U by Kotex Period Undies Black Full Brief Heavy Size 16
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U By Kotex Period Undies Black Bikini Heavy Size 12
U By Kotex Thinx Period Undies Full Brief Heavy Size 14 Black 1 Pair
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U By Kotex Thinx Period Undies Full Brief Heavy Size 12 Black 1 Pair
Delivery by Fri $9.95
U By Kotex Thinx Period Undies Full Brief Heavy Size 12 Black 1 Pair
U By Kotex Thinx Period Undies Full Brief Heavy Size 14 Black 1 Pair
U by Kotex Thinx Period Undies Black Briefs Size 16 Heavy
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
U by Kotex Thinx Period Undies Black Briefs Size 20 Heavy
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
U by Kotex Thinx Period Undies Black Briefs Size 18 Heavy
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
U by Kotex Period Undies Black Full Brief Heavy Size 14
Next-day delivery $10
U by Kotex Period Undies Black Full Brief Heavy Size 16
Next-day delivery $10
