inner tube

Lazy river ride

An inner tube is an inflatable rubber ring that fits inside a tire to hold air.

Before tubeless tires became standard, inner tubes were essential for bicycles and automobiles.

They remain common in bicycle tires and, when oversized, serve as recreational floats for rivers and pools: We spent the afternoon floating on inner tubes down the creek.

tire

rubber

Elastic polymer from trees

valveFluid flow controller
inflateFill with gas
deflateRelease air from

puncture · patch · pump · air pressure · bicycle · motorcycle · car · wheel · tread · spare

floating

buoyancy

Fluid's upward resistance

floatBuoyant object or vehicle
driftGradual movement, no direction
bobShort vertical movement

lazy river · inflatable · waterpark · current · downstream · rapids · pool float · lake · river · creek

recreation

summer

Year's warmest season

beachSandy waterside margin
vacationLeisure time away
poolsideAdjacent to swimming area

leisure · fun · relaxation · picnic · sunshine · weekend · holiday · resort · campground · backyard

watersport

rafting

Traveling on buoyant platform

whitewaterTurbulent, aerated river flow
rapidsTurbulent river section
tow ropeCable for pulling vehicles

wakeboarding · water skiing · boat · towable · speed · bouncing · wake · thrill · adventure

safety

lifejacket

Buoyant vest for water

flotationAbility to stay afloat
durableAble to withstand use
heavy-dutyBuilt for hard use

weight limit · reinforced · certified · non-toxic · supervision · shallow water · buddy system · adult supervision · secure

inner tube

rubber

buoyancy

summer

rafting

lifejacket

inner tube

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