STL FL TUMBLER GLASS 370 ML + STRAW
- Model: LEAKPROOF
- JAN: 318
FL Tumbler Glass
370ML, Medium
Sip more. Spill nothing. The Steeline FL Tumbler Glass 370 ml (M) with Lid — premium glass, snap-fit seal, built for every drink in your daily rotation.
01 — The Build
A lid that actually holds.
Every detail built to take daily use without showing its age.
Lid
Snap-Fit Seal
No threading, no fussing. Press once — it's locked, it's sealed, it's done.
Glass
Premium Glass Body
Taste-neutral, odour-free glass that stays clear and clean wash after wash.
Size
370ML — Just Right
Full serving, compact carry. Fits your hand, your bag, and your cup holder.
Straw
Stainless Steel Straw
A reusable steel straw comes with every tumbler — no soggy paper, no single-use plastic.
02 — Glass Anatomy
Designed from the rim down.
Every dimension of the FL Tumbler is deliberate — for grip, pour, storage, and the 370ML that lives inside.
Lid
Leak-Proof Snap Closure
Clicks onto the rim — secure for transit, easy to open one-handed.
Straw Lid
Snap-Fit Lid With Straw Hole
A second lid, pre-cut for the steel straw — swap in seconds for sip-and-go drinks.
Rim
Wide-Mouth Opening
Easy to fill, easy to clean, easy to drink from directly.
Body
Straight-Side Grip
Clean cylinder — steady hold and satisfying weight in hand.
Base
Stable Weighted Foot
Sits straight on desk, shelf, or dining table without tipping.
03 — Why It Works
Glass that fits your life.
A lid this good changes more than you'd expect.
04 — What Goes Inside
370 ml of whatever you feel like.
It holds all of it.
05 — What's in the Box
One tumbler. Everything it needs.
- 1 × Flexi-Lock (FL) Tumbler Glass — 370 ml
- 1 × Reusable Stainless Steel Straw
-
2 × Snap-Fit Lids
- 1 × Solid Leak-Resistant Lid
- 1 × Straw-Ready Lid (pre-cut with a straw opening)
06 — Specs
Every number that matters.
| Capacity | 370 ml — the medium sweet spot |
| Material | Premium Glass (body), Stainless Steel (straw) |
| Lid Type | Snap-Fit, Leak-Proof — 2 included (1 solid, 1 with straw hole) |
| Size | Medium (M) — fits most cup holders and bags |
| Care | Hand Wash — quick rinse, glass clears clean, lid stays snug |
07 — Ready When You Are
Glass up.
Your daily sip, done right. Bring the Steeline FL Tumbler 370 ml into your routine.