CoSTUME NATIONAL Sea Thru: released in 2024, citrus, aromatic and marine, about 5h on skin, projection 7/10, sillage 4/10. The alternatives below are matched to that profile.
The closest CoSTUME NATIONAL Sea Thru dupe we found is Fragrance World Aqua Pura — 81% match, about $25 (estimate) versus about $55 for a 100 ml bottle.
The five closest scent matches — the best CoSTUME NATIONAL Sea Thru dupes we found, ranked by opening & dry-down similarity:
| # | Alternative | Scent match | Est. price (100 ml) | Longevity vs CoSTUME NATIONAL Sea Thru | Projection |
|---|---|---|---|---|---|
| 1 | Fragrance World Aqua Pura | 81% | about $25* (−55%) | 7h vs 5h | 7/10 |
| 2 | Lattafa Perfumes Suqraat | 79% | about $25* (−55%) | 5h vs 5h | 7/10 |
| 3 | Avon Full Speed | 78% | about $15 (−73%) | 4h vs 5h | 6/10 |
| 4 | Maison Alhambra Jorge di Profondo | 78% | about $30* (−45%) | 4h vs 5h | 7/10 |
| 5 | Armaf Tres Nuit Lyric | 76% | about $30* (−45%) | 5h vs 5h | 6/10 |
This scent leans into the same marine-and-citrus territory as Sea Thru, offering a crisp, salty freshness that feels very familiar.
It shares its citrus, marine and aromatic accords with CoSTUME NATIONAL Sea Thru, opens on Lemon too, lasts about 7h against 5h and carries 193 community ratings.
While slightly more aromatic, it shares the clean, aquatic, and woody character that makes Sea Thru such an easy-wearing, fresh choice.
It shares its fresh spicy, citrus and aromatic accords with CoSTUME NATIONAL Sea Thru, lasts about 5h against 5h and carries 1,008 community ratings.
A budget-friendly, energetic citrus-and-marine scent that captures the fresh, salty spirit of Sea Thru with a similar aromatic backbone.
It shares its woody, aromatic and citrus accords with CoSTUME NATIONAL Sea Thru, lasts about 4h against 5h and carries 979 community ratings.
Evokes the deep, mineral-rich marine profile found in Sea Thru, providing a similar salty-citrus experience at a very accessible price point.
It shares its aromatic, marine and citrus accords with CoSTUME NATIONAL Sea Thru, lasts about 4h against 5h and carries 247 community ratings.
A bright, aromatic composition that mirrors the citrus-and-sea-note blend of Sea Thru, maintaining a clean and refreshing presence throughout the day.
It shares its citrus, aromatic and fresh spicy accords with CoSTUME NATIONAL Sea Thru, lasts about 5h against 5h and carries 334 community ratings.
Avon Full Speed, at about $15 for 100 ml (estimate) — around 75% less than CoSTUME NATIONAL Sea Thru.
Fragrance World Aqua Pura, at about 7h on skin, against about 5h for CoSTUME NATIONAL Sea Thru.
Fragrance World Aqua Pura, at 81% overall scent match across the opening and the dry-down.
At 4 sprays a day — about 146 ml a year — Fragrance World Aqua Pura saves you about $45 a year against CoSTUME NATIONAL Sea Thru. Assumes 100 ml bottles on both sides; prices are estimates.
Across 2,358 originals, the median designer bottle is $120 and its closest match $30 — the Dupe Report 2026.
On an 8-hour day, none of the 5 last a full 8 hours. Fragrance World Aqua Pura comes closest at 7.3h, so it needs one re-spray to cover the day.
CoSTUME NATIONAL Sea Thru notes, performance and price
AltScent is also free on the App Store and Google Play.
Updated 2026-08-20.