"Aquatica" Baby / Toddler First Wetsuit. Less restriction for growing arms is a great starting point for a first wetsuit. Of course, being neoprene, this wetsuit is super-fast drying, making getting wet no problem.
Swim Cosy Baby/Toddler Wetsuit Vest with UPF50 - Neoprene Wrap 0 1 2 3 Year Old
Classic/Aquatica Baby Wetsuit Swim Suit by TBF - Kids Childs Toddlers Suit
Konfidence Premium Swim Vest – For Baby, Toddler & Kids Up to 12 Years - UKCA/CE & Swim School Approved with Adjustable Buoyancy Ideal for Learning to Swim (Original Red, L (3-6 Years))
Swimbubs Kids Swim Vest – Swimming Jacket for Baby, Toddler & Kids, Learn to Swim Buoyancy Aid Float Vest (3-6 Years, Pink Dolphin)
SwimBest Swim Vest - For Baby, Toddler & Kids. Adjustable Buoyancy Swim Jacket, ideal for pools/beaches/holidays & Learning to Swim (Lime/Blue, L (3-6 Years/19-30kgs))
SwimBest Swim Vest - For Baby, Toddler & Kids. Adjustable Buoyancy Swim Jacket, ideal for pools/beaches/holidays & Learning to Swim (Lime/Blue, S (Up to 3 Years/Up to 19kg))