The DOLPHIN men's geometric printed flat swim trunks are designed for men who love water sports. Made with high-resilience, chlorine-resistant quick-drying fabric, they provide comfort and freedom whether you're training in the pool, relaxing on the beach, or enjoying water sports.
The geometric print design features blue, white, and black lines for a vibrant and dynamic look that exudes understated style.
All DOLPHIN training swim trunks are full-grain, ensuring four-way stretch technology and UPF 50+ sun protection.
*Due to hygiene reasons, this product cannot be returned or exchanged. If you are not sure about the size, it is recommended to check it at the physical store.
***Warm reminder: The size data is for reference only. There will be an error of 1-2cm due to manual measurement. Please refer to the actual product for details.
All "recommendations" indicated on this website are for general reference only. Actual fit should be determined based on a combination of factors, including individual body type, growth rate, and personal preferences. Please try on the product or measure your own chest, waist, shoulder width, and other relevant dimensions before making a final size selection. Please note that due to differences in lighting and screen display, colors and details may vary slightly from the actual product.
| Size | Recommended height (CM) | Waist (cm) | Waist (inch) |
|---|---|---|---|
| 22 / 3XS | 140-145 | 50-55 | 20-22 |
| 24 / 2XS | 145-150 | 55-60 | 22-24 |
| 26 / XS | 150-155 | 60-65 | 24-26 |
| 28 / S | 155-160 | 65-70 | 26-28 |
| 30 / M | 160-165 | 70-75 | 28-30 |
| 32 / L | 165-170 | 75-80 | 30-32 |
| 34 / XL | 175-180 | 80-85 | 32-34 |
| 36 / 2XL | 180-185 | 85-90 | 34-36 |
| 38 / 3XL | 185-190 | 90-95 | 36-38 |
| 40 / 4XL | 190-195 | 95-100 | 38-40 |
Men's Square Leg / Trunks Buying Guide
Q: What is the difference between Trunks/Square Legs, briefs and knee-length swimming trunks?
A: SWIM BOXER, The length of the trouser leg is about the top of the thigh (5-10cm), between swimming briefs and knee-length swimming trunks. It is slim-fitting but has more comprehensive coverage. It is a style that balances professional training with daily swimming. Briefs have the least resistance but are highly exposed; jammers cover above the knees and are mostly used in competitions. The flat-footed version is most popular among Asian swimmers, offering both comfort and professionalism.
Q: What occasions are square swimming trunks suitable for?
A: Boxer swim trunks are the first choice for multiple uses: perfect for daily pool training, swimming lessons, fitness swimming, hotel pools, and indoor competitions. Compared with the triangle version, it will not be overly exposed, and it is more convenient to put on and take off than the knee-length version. For swimmers who have just switched from casual board shorts to professional training, flat-foot styles are the best transitional choice.
Q: How should I choose the material of my flat swimming trunks?
A. For daily training, it is recommended to choose PBT polyester fiber material, and has a service life of up to 1-2 years. If you are pursuing the ultimate fit and low resistance, you can choose Lycra/nylon blend, but its chlorine resistance is weak, so it is recommended to be used only for competitions or short-term use. Be sure to rinse away chlorine and sweat salts with clean water after each swim.





















Marcus Tsang –
收到貨啦,着落好舒服,平腳長度啱啱好,完全唔會夾肉或者摩擦,絕對係性價比之選!
李朝陽 –
包裝非常安全,抽繩設計好穩陣,落水游水或者轉池都好安心,唔使驚鬆,認真一流!
Henry Luo –
真係物超所值,質地好耐氯,日日游水洗咗好多次都仲好有彈性,無變薄,真係無得彈!
鄧德華 –
細節位做得好好,着落好舒服,平腳長度啱啱好,完全唔會夾肉或者摩擦,認真一流!
志強 –
寶貝收到了,腰部抽繩設計很牢固,游泳時完全不會鬆動,做工精細,下次還會再光顧!
Patrick Wong –
Second time buying from here. Excellent chlorine resistance, fabric stays stretchy after many washes. Perfect for swim sessions!
John –
果然無令我失望,條泳褲剪裁好貼身,落水游起上嚟水阻好細,正,游池訓練必選!
何豪 –
第一次買,貼身得嚟又唔會太緊勒住,剪裁好符合人體工學,推介,認真一流!
梁建輝 –
包裝好整齊,買嚟做日常訓練用,耐磨高彈性,游水時活動得好靈活,絕對係性價比之選!