... for decreasing the pressure in the water.Size and Buoyancy:S 50-60KG chest 70-80cm Buoyancy 40N; M 60-70KG ... ,marine suit,life vest and jacket , swim floating vest ,trainer seat ,swim glasses,float suit,etc.2.outdoor sports ,slimming and ... cover ,glasses strap,glasses box ,bar table cover,automobile seat cover,bike seat cover,anti-slip runner,etc.6.Supports accessory series includes ...