Boulder Inflatable Scuba Diving Freediving Training Buoy Float Surface with Interior Surface Marker Color:White The cold water entering is

The cold water entering is isolated by the neoprene layer microporous structure and quickly changes from body heat conduction to heat forming an inactive bubble isolation layer which can reduce the convection with the outside cold water

and a removable and adjustable shoulder strap

Adjustable buckle to give extra space for your freediving gear

round snorkel case made for convenience and durability

also a perfect gift for swimmers

Boulder Inflatable Scuba Diving Freediving Training Buoy Float Surface with Interior Surface Marker Color:White The cold water entering is4 ergonomic handles on the side of the buoy for pre dive preparation 4 ergonomic handles on the top for additional grip Inflated Dimension: 70cm Diameter x 16cm Height Stainless Steel Ring at the bottom to connect the Freediving line Inflatable interior inner tube is made from rubber Bottom mesh design for water drainage With opening on the top with zipper for which has a compartment for storage Adjustable strap to easily carry around This training