IST 3mm Felt Sole Boots

The IST B400 Tall-Cut Felt Sole Boots are designed for entries and exits where wet rock, moss, and boat surfaces demand more traction than a conventional thin dive sole. A 0.4-inch felt outsole works with a flexible 3mm Neoprene Nylon II upper to balance grip, warmth, and ankle coverage.

The tall profile rises above the ankle, and reinforced toe and heel caps protect common wear areas. Heavy-duty number 10 YKK side zippers make the boots easier to put on and remove while wearing a full dive kit.

• IST model B400 tall-cut dive boots
• 3mm Neoprene Nylon II upper
• 0.4 in / approximately 10 mm thick felt sole
• Designed for traction on slick, irregular surfaces
• Tall cut rises above the ankle
• Protective toe and heel caps
• Heavy-duty number 10 YKK side zippers
• Approximate boot height: 20 cm / 7.9 in
• Manufacturer-listed whole sizes: 4 through 13
• Merchant default SKU: BOO207 M4/W5

Felt reduces slipping risk but does not make every surface safe. Check local rules because felt soles can transport invasive organisms between waterways; clean, disinfect, and dry the boots thoroughly before changing locations, and confirm that the sole and boot volume fit the intended fin pocket.