The Training Jammer is perfect for regular training with flatlock stitching, comfortable leg opening, drawcord and rubber print Funky Trunks logo. It’s a popular choice for swimmers and triathletes and offers and extra layer of warmth in open water when a wetsuit isn’t an option. Available in mens sizes 30 – 38 (XS – XL) and boys sizes 22 – 28 (6 – 12).
Made from our exclusive C-Infinity fabric, a 100% Italian polyester that is a colourful breakthrough in chlorine resistant fabric technology! The superior choice for swimmers, C-Infinity has exceptional strength and can retain its durability far beyond other elastane swimwear fabrics. Ideal for frequent pool use for recreational and performance based swimming.
















James Wilson –
These jammers are fantastic for training. The Liquid Lights design is eye-catching, and the fit is perfect. Highly recommend!
Liam Thompson –
Great pair of jammers. The material is comfortable and dries quickly. The funky design is a bonus!
Noah Smith –
Love the vibrant colours and the fit. They stay in place during intense swim sessions. Worth every penny.
Oliver Brown –
The jammers are good, but the sizing runs a bit small. Would suggest going a size up.
William Taylor –
Super comfortable and stylish. The material feels durable, and the colours pop in the water.
Benjamin White –
The design is unique, but the waistband could be more supportive. Overall, a decent product.
Lucas Harris –
These jammers are perfect for competitive swimming. The fit is snug, and the material reduces drag effectively.
Henry Martin –
The Liquid Lights design is stunning, but the fabric feels a bit thin. Hoping it holds up over time.
Alexander Clark –
Very happy with this purchase. The jammers are lightweight and provide excellent freedom of movement.
Michael Lewis –
The colours fade a bit after a few washes, but the comfort and fit are still top-notch.
Daniel Walker –
Great for training sessions. The jammers are breathable and don’t ride up. Love the funky design!
Matthew Hall –
Good quality jammers, but the waistband could be more elastic. Otherwise, they perform well in the pool.