Xcel Kid's IconX 5/4mm Back Zip Fullsuit Wetsuit Ideal Durability, Comfort, and Warmth. If you’re looking for enhanced durability, warmth and stretch at a great value, the XCEL IconX is the wetsuit for you. The XCEL IconX wetsuit is offered in an easy entry Back Zip design with glued and blind stitched seams, compression resistant Duraflex knee pads, and the Engineered Fit that XCEL wetsuits are known for.