Watersy Portable Sling & Handle Vacuum Flask (SUS 316) - clean product cutout on studio background, 1600x1600

Watersy Portable Sling & Handle Vacuum Flask (SUS 316)

  • Vacuum-insulated outdoor flask branded "Watersy", offered in 800ml/27oz, 1200ml/40oz and 1500ml/51oz with a fold-down portable handle plus a detachable portable sling (carry strap) with clips ("TWO PORTABLE MODES OF TRAVEL").
  • Inner liner is SUS 316 stainless steel (embossed "SUS 316"), outer wall 18/8 stainless steel with powder coat, one-click-open stopper, stainless steel tea strainer plate and mirror-finish cup cover allow three ways of drinking (direct drinking port, teacup cover, wide mouth).
  • Marketed as "WARM ACCOMPANYING / LIGHTWEIGHT AND PORTABLE".
BSCI FDA LFGB CE ISO9001

Every Watersy production run is backed by mainstream international certifications — test reports and compliance documents are available on request.

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Specifications

Series Outdoor Sports Bottles
Cup Type Pop-Up Lid Tumbler
Capacity 800ml/27oz, 1200ml/40oz, 1500ml/51oz
Material 304 Stainless Steel
Customization Support OEM / ODM
Vacuum Insulation Double-wall Vacuum
Handle With Handle

Product Overview

Key Specifications

ParameterValue
Capacity800ml/27oz, 1200ml/40oz, 1500ml/51oz
Height800ml: 23.8cm / 9.37inch, 1200ml: 27cm / 10.63inch, 1500ml: 32cm / 12.6inch
Diameter10.4cm / 4.09inch (all three capacities)
Weight1200ml: 555±10g, 800ml & 1500ml: not stated ("/" in source)
Inner materialSUS 316 stainless steel ("316 stainless steel liner", embossed "SUS 316")
Outer material18/8 stainless steel outer layer, powder coat finish
Wall structure5 layers: NO.1 316 stainless steel liner, NO.2 point solution process layer, NO.3 vacuum insulation layer, NO.4 18/8 stainless steel outer layer, NO.5 powder coat
InsulationVacuum insulation layer ("double-wall vacuum flask" per base ring text), "Long term insulation"
Lid / drinkingOne-click-open stopper ("One click open", "OPEN THE COVER WITH ONE BUTTON"), mirror cup cover usable as teacup, wide mouth, stainless steel filter screen / tea strainer plate
Carry optionsPortable handle (fold-down), portable sling (detachable strap with clips, "SUITABLE FOR A SLING")
Claimed features100% leak proof, sweat free, not burn hand, skid resistance, no odor, no retention or transfer of flavor, food grade, corrosion resistance, high temperature resistance, anti slip cup bottom
Beverage compatibility (316 vs 304 chart)316: lotion, fruit juice, soup, cola, coffee, tea, soybean milk (all checked), 304: fruit juice, soup, coffee only
Wide-mouth suitabilityCoffee, Cola, Tea, Milk, Beer, Lemonade, Milkshake, Fruit Juice
ColorsBlack, White, Pink (gradient), Light Green (gradient) — 4 color dots and 4 SKU photos
Measurement note"The product is measured manually, and there may be some errors. Please refer to the actual product for details."

Variants & Capacities

CapacityHeightDiameterWeightColors
800ml/27oz23.8cm / 9.37inch (238mm)10.4cm / 4.09inch (104mm)—Black, White, Pink, Light Green
1200ml/40oz27cm / 10.63inch (270mm)10.4cm / 4.09inch (104mm)555±10gBlack, White, Pink, Light Green
1500ml/51oz32cm / 12.6inch (320mm)10.4cm / 4.09inch (104mm)—Black, White, Pink, Light Green

Description

The Watersy Portable Sling & Handle Vacuum Flask is an outdoor-series insulated flask built around two carry modes: a fold-down portable handle integrated at the neck and a detachable portable sling (carry strap) that clips onto lugs beside the shoulder ("TWO PORTABLE MODES OF TRAVEL", "SUITABLE FOR A SLING"). The body carries a mirror-silver "Watersy" script logo over a matte powder-coated surface with vertical fluting near the base.

The wall is a five-layer construction: 316 stainless steel liner, point solution process layer, vacuum insulation layer, 18/8 stainless steel outer layer and powder coat. The liner is stamped "SUS 316" and is promoted as odorless, non-toxic, food grade, corrosion resistant and high temperature resistant, a comparison chart shows 316 tolerating lotion, fruit juice, soup, cola, coffee, tea and soybean milk where 304 covers only fruit juice, soup and coffee.

Drinking is offered three ways: a direct drinking port through the one-click-open stopper ("elegance does not touch the nose"), the mirror-finish cup cover used as a teacup ("drink water anytime"), and the wide mouth for filling and pouring ("easy to drink and unlimited to drink"). The stopper opens with a single orange button and includes a stainless steel filter screen / tea strainer plate for tea leaves, the base has an anti-slip cup bottom that does not damage desktops. Claimed performance includes 100% leak proof, sweat-free exterior that does not burn the hand, skid resistance, and no odor or flavor retention/transfer. The wide mouth is illustrated for coffee, cola, tea, milk, beer, lemonade, milkshake and fruit juice.

Three capacities (800ml/27oz, 1200ml/40oz, 1500ml/51oz) share a 10.4cm diameter and differ only in height (23.8 / 27 / 32 cm). Four finishes are shown: solid black, solid white, and white-to-pink and white-to-light-green gradients. Listing copy positions the flask as "WARM ACCOMPANYING — LIGHTWEIGHT AND PORTABLE".

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