• Teal (R)evolution™ 9L Sidekick (Front): Light blue and teal backpack with yellow straps, buckle, and zipper accents
    Made from Recycled Bottles
  • Blue W/ Green (R)evolution™ 9L Sidekick (Front): Two-tone blue and green backpack with front buckle strap and zipper pockets
    Made from Recycled Bottles
  • Olive (R)evolution™ 9L Sidekick (Front): Olive and tan backpack with orange zippers, buckle strap, and diamond logo patch
    Made from Recycled Bottles
  • Black (R)evolution™ 9L Sidekick (Front): Black nylon pack with flap closure, buckle strap, and side mesh pocket
    Made from Recycled Bottles
  • Pink (R)evolution™ 9L Sidekick (Front): Hot pink and peach backpack with teal trim, buckle strap, mesh sides
    Made from Recycled Bottles
  • Camel (R)evolution™ 9L Sidekick (Front): Tan canvas bag with buckle strap, front pocket, and diamond logo patch
    Made from Recycled Bottles
  • Camel (R)evolution™ 9L Sidekick (Detail): Open front pocket reveals pencil and notebook beside a coral water bottle
    Made from Recycled Bottles
  • Camel (R)evolution™ 9L Sidekick (Back): Camel brown backpack showing padded back panel, shoulder straps, and buckles
    Made from Recycled Bottles
  • (R)evolution™ 9L Sidekick (Detail): Navy interior pocket open, showing phone, red pen, and buckle strap
    Made from Recycled Bottles
  • Pink (R)evolution™ 9L Sidekick (Detail): Open front pocket showing phone, sunglasses, and teal water bottle in side mesh pocket
    Made from Recycled Bottles
  • Olive (R)evolution™ 9L Sidekick (Detail): Open front pocket revealing sunglasses, pens, and side mesh water bottle holder
    Made from Recycled Bottles
  • Pink (R)evolution™ 9L Sidekick (Back): Hot pink backpack back panel with teal and peach padded shoulder straps
    Made from Recycled Bottles
  • Black (R)evolution™ 9L Sidekick (Detail): Close-up of black backpack pocket holding orange topographic-print notebook, diamond logo patch visible
    Made from Recycled Bottles
  • Black (R)evolution™ 9L Sidekick (Detail): Open black backpack interior holds books, a blue notebook, and orange accessory pouch
    Made from Recycled Bottles
  • Black (R)evolution™ 9L Sidekick (Detail): Open front pocket reveals phone, stylus, and patterned notebook inside
    Made from Recycled Bottles
  • Black (R)evolution™ 9L Sidekick (Side): Black backpack side profile with open top zipper revealing documents inside
    Made from Recycled Bottles
  • Camel (R)evolution™ 9L Sidekick (Detail): Open tan backpack interior showing notebook, blue pouch, and orange zipper pull
    Made from Recycled Bottles
  • Blue W/ Green (R)evolution™ 9L Sidekick (In-use): Woman wearing navy backpack with flap closure, buckle, and logo patch
    Made from Recycled Bottles
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(R)evolution™ 9L Sidekick

$50.00
$88.00 $50.00
You save $38.00
Sale Sold out
Shipping calculated at checkout.

A compact bag designed for everyday adventures, made with 100% recycled materials.

Color: Teal

This item ships free! - See Details

1 lb of trash
removed
Better
Materials
Free Shipping Over $30

Free standard shipping on US orders over $30. Orders under $30 ship for $5.00 flat.

Standard delivery: 3–4 business days after a 1–2 day processing window.

Expedited and international options available at checkout. Full shipping details →

Easy Returns & Exchanges

Not the right fit? Send it back within 30 days for a refund or free exchange.

Items must be unworn, unwashed, and have original tags attached. Final sale items are not eligible for return or exchange.

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Backed by Our Guarantee

Every United By Blue product is built to last and backed by our Lifetime Guarantee. If a manufacturing defect shows up, we'll repair or replace it.

And every purchase removes 1 lb of trash from oceans and waterways.

Read the full guarantee →

Leticia M.
“I love this pack it is great for traveling and for everyday use. I always car...” Read more Read less
“I love this pack it is great for traveling and for everyday use. I always carry my water bottle and a book with me and in a purse I would always have fatigue from carrying it on one side, however with this backpack the weight is evenly distributed and I can wear it all day without any discomfort. This little pack has such a neat little design, a perfect blend between sporty and casual. I would highly recommend if you are looking for a compact little pack. I also love that it's environmentally friendly!”

Description

The (R)evolution™ 9L Sidekick: Compact Convenience for Every Day

Designed for the essentials, the 9L Sidekick is your streamlined companion for quick trips, errands, and lightweight adventures. Its compact size means it’s easy to carry, yet it’s packed with purposeful features.

• Tailored for Daily Essentials: Compact and organized, with a padded sleeve ideal for tablets and small devices.

• Eco-Friendly & Sustainable: Crafted from 100% recycled materials, each bag repurposes eight plastic bottles, turning waste into function.

• Guaranteed for Life. Backed by Common Sense: We cover manufacturing defects for the life of the product. It’s that simple.

• Smart 9L Capacity: Roomy enough for your must-haves—wallet, phone, snacks, and water bottle—all in a sleek, easy-to-carry size. Dimensions approximately 13” H x 10” W x 4.25” D

• Expandable Side Pockets: Adjustable side pockets keep water bottles or thermoses secure and accessible on the go.

• Ready for Any Weather: Built tough with water-resistant, tear-resistant, and stain-resistant fabric for everyday resilience, guaranteed for life.

• A Mission with Every Purchase: For each Sidekick sold, one pound of trash is removed from the environment.

With a size that’s just right and an impact that’s far-reaching, the 9L Sidekick is your go-to for light, conscious carry.

View full details

Overall rating: 4.4564514 / 5 from 620 reviews.

AI Generated Review Summary

The (R)evolution™ 9L Sidekick is a compact, eco-friendly bag designed for daily essentials. It features a padded sleeve for tablets, expandable side pockets, and compartments that are both organized and great. The quality and material are exceptional, and the color and look are highly appreciated. However, some customers find the fit tight and the straps uncomfortable.

Summary topics

  • Pack: 12%
  • Quality: 11%
  • Material: 5%
  • Color: 11%
  • Looks: 5%

Review topics: [].

Review highlights

  • "The material is of the highest quality and the backpack is the perfect size." — Allison O.
  • "Absolutely love the size and material and all the pockets come in handing for storing my goods." — Irene B.
  • "The material is thick and feels great, strong quality zips and all the flaps and attachments are sturdy and functional." — Katherine B.

Reviews

Great LITTLE bag

"I like this bag. I take it to coffee shops and on short day hikes. The large pack has a laptop sleeve which, disappointingly, is JUST too tight to fit a 14” laptop (it will fit in the large pouch, just not the dedicated laptop sleeve). The medium pouch has nice dividers so you can keep pens, pocketknives, journals, or whatever separated for easy access. The tiny pouch on top is perfect for quick access to keys/headphones. The bottle holders on the sides are surprisingly sizable - they will stretch fit a 32oz Owala brand water bottle, and keep it secure even when hiking."

— Brandon (5/5)

Perfect little day backpack

"Love this little backpack! The side pockets are perfect. I didn't think it would fit a chromebook or a three ring binder but I was wrong - my kid has managed to get both in there (though not at the same time). Loves this pack."

— Jessica O. (5/5)

Almost perfect

"This is a very cute and thoughtfully designed backpack. The straps and buckle didn't work for me, so I hope that might change in the future, but there are very few things out there that are this eye-catching AND functional."

— Anni L. (4/5)

Weird design - giving it away

"The top straps are in an awkward place. It rest too high on my back and hits the back of my head. I’ve tried to adjust it, but it still hits the back of my head. I wish it hung a bit lower Im probably going to give it away."

— Jennifer K. (2/5)

"The commuter and travel bag Inhave been looking for. It is the perfect, compact soze for travel, while still allowing for a waterbottle and small laptop or tablet. Sturdy fabric and padded shoulder straps. Love!"

— Lori (5/5)

The perfect backpack for a day in the city.

"This bag checked all my boxes! I wanted something small, with dual water bottle holders, soft straps, and enough space to carry all the things I need. We are city dwellers and this was just the right size to spend a day out with my daughter."

— Alex W. (5/5)

"Its cute! The straps are a bit short but they fit me. A lot of pockets and fits a big nalgene which is great!"

— Zoe (5/5)

Colorful & Practical

"Super colorful and practical. I bought it for a friend as a gift."

— Heather M. (5/5)

Great Small Backpack!

"One of the handful of well-designed smaller backpacks out there. We need more options like these!"

— Pierce D. (5/5)

Perfect little backpack

"I love this backpack! I wish I had known about it sooner."

— Beth B. (5/5)

Q&A

Will this fit a 13” laptop
No - it's a little day pack so not designed to fit a 13" laptops. Our 25L packs definitely will though!
Hi, what does water resistant mean. Will it be okay if your iut and about in the rain with ut?
Water resistant means it can handle light water but is not fully wate proof. It will hold up in rain, but the contents of the bag may get wet.
Do you ship to australia
Hi Dianne! Yes, we do ship to Australia.
What is the weight of this bag?
Hi Tathiana! This bag weighs about 16 oz.
Do you think you will bring back colors from prior years - specifically, the yellow/blue combo with the gorgeous "checkered" front tassel, as pictured in Emmarina T's post dated 1/30/20, or the burgundy color, pictured in Katherine M's post on 10/22/21? Crossing fingers!! Thx so much!!
Hi NC! We just launched new colors for this bag, one of them being very similar to Emmarina's bag!