Quick answer
Choose the Swim 6" Racerback Unisuit if you want a water-activated print and a sporty, secure racerback. Go with the Swim 3.5" Skinny Strap Unisuit for a shorter inseam and adjustable straps that let you fine-tune the fit.
Fit and coverage differences
The Swim 6" Racerback Unisuit offers a longer 6-inch inseam and a racerback design that stays put during active swimming or gym sessions. Its water-activated jellyfish print adds a fun surprise when wet, then fades back to black as it dries.
The Swim 3.5" Skinny Strap Unisuit has a shorter 3.5-inch inseam and thin, fully adjustable straps. This gives you more control over the shoulder fit and a slightly briefer leg line. Both suits are double-lined for full coverage and light support.
Trade-offs at a glance
- Strap style: Racerback (6" Unisuit) offers a fixed, sporty fit that won't slip. Skinny straps (3.5" Unisuit) are adjustable for a personalized shoulder fit.
- Inseam length: 6-inch inseam provides more leg coverage and a longer silhouette. 3.5-inch inseam gives a shorter, more bikini-like leg line.
- Fabric feature: 6" Unisuit has water-activated jellyfish print that appears when wet. 3.5" Unisuit uses a standard double-lined fabric with no color-change effect. If you want a swimsuit that does double duty as a conversation starter, the 6" Racerback is the pick.
Product facts
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Swim 6" Racerback Unisuit: Water-activated fabric reveals gray jellies when wet, then returns to all-black when dry. You get a playful, color-changing swimsuit that looks sleek in the locker room but surprises in the water.
Swim 6" Racerback Unisuit
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Swim 3.5" Skinny Strap Unisuit: Double-lined fabric with a shorter 3.5-inch inseam and thin, adjustable straps. The adjustable straps let you customize the shoulder fit, while the shorter inseam offers a less bulky leg feel.
Swim 3.5" Skinny Strap Unisuit
Which swim unisuit fits you?
Best for
- Active swimmers and gym-goers who want a secure racerback and longer inseam
- Anyone who loves a playful, water-activated print
Not for
- Those who prefer a shorter inseam and adjustable straps for a custom shoulder fit