vacuum drinking flask
1.double walls construct
2.reliable quality & strong belt
3.good for promotion sale

double walls vacuum drinking flask

This product is composed by double walls of 0.4mm thickness 201 stainless steel.And only fresh PP will be used for the cover.

With high vacuum treatment,it can hold temperature for over 10 hours from 100 degree to 50 degree.

Available Capacities:350ml(10 hours),500ml(12 hours)

Personality:CUSTOM LOGO & BRAND PRINT ARE BOTH AVAILABLE.