Product Description
The original design gives more gluteal volume and definition, adapting perfectly to every body shape its design is practical, discreet and comfortable. Perfect for water activities or extreme sports for long periods of time.
Rounderbum, no longer leaves you at the waterʼs edge. The innovation and technology that defines Rounderbum has been translated into the new H2O swimwear line. The H2O trunks with proprietary design padded technology that absorbs minimum moisture and quick dry gives you that volume boost to your butt that equally boosts your confidence. The upscale tailoring with slightly thicker fabric polished steel buckles to adjust the waistband allow them to double as shorts. So youʼre equally comfortable sipping cocktails on the yacht deck, splashing in the surf or cooling off in the pool while we have long helped you say goodbye to saggy jeans Rounderbum now has you backside covered for wet summer fun.
SHAPING YOUR BEACH BODY!
FEATURES
- [PADDED Tech]®
- Removable padding
- Round Bum Effect
- Waistband Fasteners
- Quick Dry
- Waistband adjustment: 0.5'' each side
- Pad thickness: 0.5'' approximately
- Inseam:
- Size Small: 4''
- Size Medium: 5''
- Size Large: 5.25''
- Size XL: 5.5''
COMPOSITION & CARE
- Body: 95% POLYESTER 5% ELASTANE
- Lining: 90% NYLON 10% ELASTANE
- Machine wash cold. Use mild detergent. Please don't use bleach. Hang to dry. Do not iron. Do not soak.
Availability & Sizing
Price History
Historical Data
Last 1 days of price history
| Date | Low Price | High Price | Average Price | Vendors |
|---|---|---|---|---|
| May 6, 2026 | $44.50 | $44.50 | $44.50 | 1 |
Price Statistics
Description
The original design gives more gluteal volume and definition, adapting perfectly to every body shape its design is practical, discreet and comfortable. Perfect for water activities or extreme sports for long periods of time. Rounderbum, no longer leaves you at the waterʼs edge. The innovation and technology that defines Rounderbum has been translated into the new H2O swimwear line. The H2O trunks with proprietary design padded technology that absorbs minimum moisture and quick dry gives you that volume boost to your butt that equally boosts your confidence. The upscale tailoring with slightly thicker fabric polished steel buckles to adjust the waistband allow them to double as shorts. So youʼre equally comfortable sipping cocktails on the yacht deck, splashing in the surf or cooling off in the pool while we have long helped you say goodbye to saggy jeans Rounderbum now has you backside covered for wet summer fun. SHAPING YOUR BEACH BODY! FEATURES [PADDED Tech]® Removable padding Round Bum Effect Waistband Fasteners Quick Dry Waistband adjustment: 0.5'' each side Pad thickness: 0.5'' approximately Inseam: Size Small: 4'' Size Medium: 5'' Size Large: 5.25'' Size XL: 5.5'' COMPOSITION & CARE Body: 95% POLYESTER 5% ELASTANE Lining: 90% NYLON 10% ELASTANE Machine wash cold. Use mild detergent. Please don't use bleach. Hang to dry. Do not iron. Do not soak.
Additional Info
Vendor Comparison (1 stores)
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| Vendor | Price | Stock | Last Updated | Action |
|---|---|---|---|---|
Underwear Expert Best Price | $44.50 | Out of Stock | 5/6/2026 | View Product → |
Available Sizes & Variants (9)
| Variant | Size | Color | Price | Status | Stores | Buy |
|---|---|---|---|---|---|---|
Black / S | S | Black | $44.50 $89.00 | In Stock | 1 store | Buy |
Black / M | M | Black | $44.50 $89.00 | In Stock | 1 store | Buy |
Black / L | L | Black | $44.50 $89.00 | In Stock | 1 store | Buy |
Blue / S | S | Blue | $44.50 $89.00 | In Stock | 1 store | Buy |
Blue / M | M | Blue | $44.50 $89.00 | In Stock | 1 store | Buy |
Blue / L | L | Blue | $44.50 $89.00 | In Stock | 1 store | Buy |
Red / S | S | Red | $44.50 $89.00 | In Stock | 1 store | Buy |
Red / M | M | Red | $44.50 $89.00 | In Stock | 1 store | Buy |
Red / L | L | Red | $44.50 $89.00 | In Stock | 1 store | Buy |
