Why We Design Oassay?

We deeply love nature and crave adventure, seeking deeper, more meaningful experiences.
But how can we best prepare for these journeys? Our love for nature and our planet compels us to reject bottled plastics. So, what better solution can we offer?

Inspirations

Natural Color Palette: Incorporates natural colors like green and yellow, reflecting the brand's connection with nature.
Appealing Design: Combines functionality with visual appeal, making it suitable for outdoor enthusiasts.

2024-04

Our Journey Started

OASSAY began with a mission to rethink outdoor purifying bottle — making it portable, lighter, smarter, and more eco-friendly.

2024-05

Prototype Design

Balancing water capacity with portability led us to a breakthrough: a modular purifier with a detachable filter and collapsible water cup.

Prototype concept
2024-08

Early Version

From a rigid filter mount to a redesigned ergonomic shell, we began merging utility with intuitive form — for cleaner water and a better hold.

V0-V1
2024-10

Chasing Max Filtration Efficiency

We added a smart monitor and restructured the body for raw performance — stripping fragile parts and pushing filtration efficiency to new limits.

V2-V3
2024-11

Back to Basics

We removed the circuit board and returned to a fully mechanical system — simpler, tougher, more reliable in the wild.

V4
2025-02

Inspired by Nature

A breakthrough in grip design came from nature — our “woodpecker spine” structure gave users a secure, intuitive hold even with wet hands.

V5
2025-03

Grip & Capacity Boosted

We doubled the comfort and increased storage by 30%, refining both the feel and function for real-world adventure.

V6
2025-04

High-Speed Squeeze System

We developed a pressure-optimized squeeze system for faster flow, reduced effort, and smoother hydration.

V7
2025-03

Final Kit: Multi-Mode, Full Titanium

Modular. Rugged. Complete. The final kit features three modes, a pure titanium outer cup, and the most powerful filter system we’ve ever built.

V8

469 Days. 9 Versions. 27 Prototypes.

OASSAY is finally ready to meet your next adventure.

Every Sip, Clearly Safer.

FlexFlow’s advanced purification is powered by OASSAY’s patented NanoFlex Carbon—proven through rigorous lab testing and honored with the Geneva Invention Silver Award. Backed by real data and global recognition, it delivers safe, effective, and trusted performance in every sip.

▌Tested, Awarded, Trusted by Data.
Geneva Invention Silver Medal Diploma
Antibacterial Performance Test Report
Antibacterial Performance Test Report
Culture State Colony Count
Culture state colony count