20 Oz Straight Skinny Tumblers 6 Pack - Slim Insulated Cups

Our review of these 20 oz straight skinny tumblers finds them best for crafters and gift givers who want a blank, durable canvas for personalization; the single biggest reason to buy is the straight, non-tapered body that makes DIY customization like epoxy, glitter, and decal work far easier than on tapered models. The set arrives as six individually gift boxed tumblers with lids, straws and a brush, so they work as ready-to-send presents or a bulk starter kit for a small business or craft night.

Key Features

• Straight body: The completely straight 20 oz profile simplifies sanding, wrapping and applying epoxy or vinyl for consistent DIY results.
• Double wall vacuum insulation: Keeps cold drinks cold for hours and hot drinks warm for several hours, maintaining beverage temperature on the go.
• 304 18/8 stainless steel: The construction resists rust and provides a solid, durable feel that stands up to daily use.
• Individually gift boxed: Each tumbler ships in its own box so they are gift-ready without additional repackaging.
• Accessory kit included: Six BPA-free lids, six straws and a straw-cleaning brush are provided so the set is ready to use and decorate.

Who It's For

These tumblers are ideal for crafters, small-batch makers and anyone who wants a consistent blank canvas for resin, epoxy or vinyl decals; the straight sides remove complications found with tapered designs. They are also a practical option for event planners and households needing multiple matching insulated cups that are ready to gift.

Those seeking vacuum bottles that keep drinks hot for an entire workday or stainless drinkware with advanced leakproof lids should look elsewhere, as the lids are functional but some users report occasional durability issues. If you need a very wide opening for cleaning or pouring, choose a different style.

Pros & Cons

Pros

• Great for DIY projects thanks to the straight, slim profile and compatible surface for epoxy and decals.
• Good insulation performance that preserves cold beverages for extended periods and maintains hot drinks for several hours.
• Comes complete with lids, BPA-free straws and a straw brush, and each cup is individually gift boxed for easy gifting.
• Solid feel from 304 18/8 stainless steel that generally resists rust and wear.

Cons

• Some customers report lid durability and occasional paint or finish peeling, so lids and exterior finish may require gentle handling.
• Not designed for all-day heat retention compared with high-end vacuum flasks.

Specifications

Capacity	20 oz
Body style	Straight skinny
Material	304 18/8 stainless steel
Insulation	Double wall vacuum insulation
Included accessories	6 lids, 6 BPA-free straws, 1 straw brush
Packaging	Individually gift boxed (6 boxes)

Our Verdict

For crafters, party planners and gift buyers who want a uniform, easy-to-decorate tumbler, this 6 pack delivers strong value with solid insulation and ready-to-ship packaging. While lids and finishes may need gentle care, the straight 20 oz stainless steel cups are a practical, affordable choice for DIY work and everyday use.

Frequently Asked Questions

Are these tumblers suitable for epoxy and resin projects?
Yes, the straight body is designed to make epoxy, resin and vinyl work easier and more consistent than on tapered tumblers.

How long do drinks stay cold or hot?
The double wall vacuum insulation keeps cold drinks chilled for many hours and will maintain hot drinks for several hours, though not all-day like a specialty thermos.

Do the tumblers come ready to gift?
Yes, each tumbler is individually gift boxed and includes a lid and straw, so no repackaging is required.