HongXing 700ml Kids Insulated Tumbler Straw Cup 316 Steel | Factory Direct

A child's insulated cup has one job: keep the drink at the right temperature until the child actually wants it. The Keduo 700ml does that with 304+316# dual-steel vacuum insulation, then adds a built-in straw and four character colourways so the child actually wants to pick it up.

The 316# inner liner is the silent performance layer — molybdenum-alloyed steel that resists acidic drinks (fruit juice, citrus water, milk) better than standard 304# over repeated use cycles. The vacuum cavity between the inner and outer walls keeps hot drinks above 50°C for approximately 5 hours and cold drinks below 10°C for approximately 8 hours — covering a full school day plus after-school activity without a temperature complaint.

The flip-lid mechanism integrates a built-in silicone straw that routes from the cup base to the drinking port. The child flips the lid open, the straw is already in position, and drinking starts immediately. No loose straw to drop, no assembly required after washing. The PP lid is colour-coordinated with the body, and the silicone seal ring provides leak-resistant transport in school bags.

Each of the four colourways — Purple, White, Green, Pink — carries a distinct cartoon character illustration on the vacuum-insulated steel body. The prints are applied to the outer wall surface and protected by the matte finish coat.

For wholesale buyers, the Keduo occupies the 700ml children's insulated capacity position: larger than a 500ml morning cup, smaller and more child-portable than a 1-litre adult sports flask. Two key material specs — 316# inner + 304# outer + vacuum — support premium retail pricing vs standard 304# single-grade children's cups.