A great value winter wetsuit boot the foil from Billabong has sealed seams to help prevent water getting in and lining on the inside to lock in warmth as much as possible. The round toe version will be warmer than the split toe the advantage of the split toe is that it prevents rolling of the foot and gives you more feel for the board it's largely down to personal preference which one to go for. Drymax Cuff EZ-On Pull tab Furnace lining Non Marking grey gum sole Flex Cut Arch Durable Arch Bridge Internal Split Toe :: Men > Wetsuits. Ideal for surfing in cold water above 10°C5mm thicknessOptimum flex and grip with rubber outsoleCrafted from 100% SuperStretch Neoprene for comfort and flexibilityPull on heel strap for easy accessExternal split toe bootieWelded seams to avoid cold water from entering Size: UK 4,UK 5,UK 6,UK 3.