The Speedo Mens HyperBoom Splice Jammer in Peacoat-Deepsapphire is a high-performance training jammer that perfectly merges Speedo's iconic design heritage with cutting-edge textile technology. The distinctive HyperBoom Splice design, featuring the legendary go-faster Boom Logo stripe, makes a bold and sporty statement in the water. Crafted from premium Endurance Pro fabric – composed of 57% polyester and 43% polyester PBT – this jammer delivers outstanding chlorine resistance and pilling resistance for long-lasting performance. The four-way stretch construction ensures exceptional freedom of movement and superior shape retention, session after session. A front modesty panel liner combined with an internal drawcord provides reliable support and a secure, personalised fit throughout your entire training session. An integrated UPF 40+ sun protection factor makes this jammer equally well-suited for outdoor pool sessions.
Your advantages at a glance
- Endurance Pro Technology: Chlorine- and pilling-resistant fabric (57% polyester, 43% PBT) for maximum longevity
- Four-Way Stretch: Exceptional freedom of movement and outstanding shape retention with every stroke
- Front Modesty Panel Liner: Integrated front lining for comfort, support and modesty during training
- Internal Drawcord: Individually adjustable waistband for a secure and comfortable fit at all times
- UPF 40+ Sun Protection: Reliable UV protection – ideal for outdoor pools and open-water sessions
Technical Details
- Material: 57% polyester, 43% polyester PBT (Endurance Pro)
- Cut & Style: Jammer cut with splice pattern and iconic HyperBoom Boom Logo stripe
- Lining: Front modesty panel liner (integrated front lining)
- Closure: Internal waist drawcord for individually adjustable fit
- Protection: Chlorine resistance, pilling resistance and UPF 40+ sun protection factor
Our Recommendation for You
"The HyperBoom Splice Jammer is our top recommendation for all swimmers who train hard in chlorinated water on a regular basis and refuse to compromise on durability, secure fit and stylish design – a jammer that truly grows with you."
Your Schwimmsport Steiner Team
| Size | 3 or 4 or 5 or 6 or 7 or 8 |
| Manufacturer Colour | Peacoat-Deepsapphire |
| Manufacturer | Speedo |













