The result of extensive R&D, the ONOPOD is a brand new 100% original design and the most universally adaptable car cup and drink holder you can find.
Key Features:

Designed to fit medium to large bottles, cups and mugs from 2.7″ to 3.8″ diameter.
Flexible and expandable silicone base fits snugly in most vehicles' factory installed cupholders.
4 detachable easy-fit adapters to prevent smaller bottles from rattling or tipping over.
Non-slip coaster to prevent cups and bottles from sliding in cup holder.

As a guide here are some popular brands and sizes that fit:

Hydro Flask: 16 – 40 oz
Yeti Rambler: 12 – 36 oz
Yeti Tumblers: 10 – 20 oz
Yeti Mugs: 10 oz & 24 oz (NOTE: Will NOT fit Yeti 14 oz mug)
Camelbak: 12 – 50 oz
Nalgene: 16 – 32 oz
Klean Kanteen: 16 – 40 oz
Takeya: 18 – 40 oz

Note: Although the flexible base is specially designed to fit most vehicles' factory cup holders, it MAY NOT FIT in every vehicle due to the myriad of makes and models.
Before buying, answer “YES” to all 3 questions on this checklist:1) Is your vehicle's factory center console drink holder round and measures between 2.7″ to 3.5″ in diameter?2) Is there 4.25″ diameter of unhindered flat surface around your vehicle's center console drink holder?3) There is NO sliding nor hinged door covering your vehicle's center console drink holder?
If unsure, please refer to the images for specs and dimensions.
Package Contents:

ONOPOD Car Cup Holder
Easy-Fit Adapters (4 pcs plus 2 spares)
Non-slip Coaster
Gift Box

ZERO-RISK PURCHASE: If it does not fit simply return it for a full refund.