Be Sigma
The SIGMA FLEX 40 oz JUG
The SIGMA FLEX 40 oz JUG
Couldn't load pickup availability
Share
The SIGMA Flex – Grip, Drink, Dominate
Meet the SIGMA Flex. Go Big or go Home. Designed to rep your lifestyle with our PowerGrip handle, this beast is ready take on whatever the day (or night) brings. Whether you’re playing your sport, building your dreams, or just hangin', the Flex Jug has got you.
Why It’s Built Different:
- 40 oz 'Big Dawg' Oversized Capacity-
- PowerGrip Side Handle – Grab, Grip, Go
- Dual-Purpose Lid – Flip straw for drinking or pop into ‘Chug Mode
- Double-Wall Vacuum Insulation – ‘Ice Cold’ for All Day
- Premium Stainless Steel – Built tough, because weak isn’t in your vocabulary
- Cupholder-Ready Base – Big but still fits the ride
- Dishwasher Safe & BPA-Free















Let customers speak for us
from 605 reviewsBought this for my son and he’s obsessed. Really high quality and cool design.
Sharp look, super structured fit, and love that it’s from a kid-founded brand.
So convenient
So himothy
I appreciate the clean look and modern style. Fits him perfectly.
Straight fire
Very practical
Sippin like royalty
Top-notch bottle
Super durable
Well made, fits great, and he actually keeps track of it. That says a lot!
This is the only hat my middle schooler wears now. We even got the white one too.
Stays cold forever
Really useful
Alpha approved
