Funky Trunks Big Bang Boy's Training Jammers chart-funkita-swimsuits Practical – it works well

Practical – it works well after a bath

25 square inches of logo allowed in USA competitions

Featuring a colour-block design

cat chasing its own tail

The Frostfire Moonwrap has a fleece-lined hood to ensure you stay warm when you are getting changed or wearing the Moonwrap

Funky Trunks Big Bang Boy's Training Jammers chart-funkita-swimsuits Practical – it works wellThe 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 an extra layer of warmth in open water when a wetsuit isn't an option. Constructed from C Infinity, the training Jammer is designed for continual use in chlorinated water. C Infinity is a colourful breakthrough in chlorine resistant fabric