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AC Lite SL 21L Backpack - Women's

5 out of 5 stars
9 Reviews

Out of Stock

Don't worry though, we have a lot more Technical Daypacks in stock than that.

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Why We Like The AC Lite SL 21L Backpack

Compact and streamlined, the AC Lite SL 21L Backpack makes us forget we're wearing it as we bag our next peak. The flexible frame moves with us as it sends our load into the padded hip belt, giving us a stable, effortless carry. When the sky threatens a shower, we pull out the rain cover to protect our gear as we trek on.


  • Lightweight pack for day-long pursuits
  • 21L capacity to stash your day's food, layers, and other essentials
  • Sturdy steel frame sends weight into hip belt
  • Mesh back panel provides increased breathability
  • Padded hip belt and shoulder straps provide added comfort
  • Women's fit delivers a more comfortable, efficient carry
  • Trekking pole bungee tie off for when they're not in use
  • Hydration compatible for hands-free sipping (reservoir not included)
  • Item #DTRL15Z
210D nylon
21L (1282cu in)
Aircomfort mesh back panel, permanently elastic spring steel round profile frame
Shoulder Straps
padded, adjustable sternum strap
Waist Belt
Hydration Compatible
elasticated internal sleeve (3L reservoir not included)
2 stretch mesh side, 1 lid compartment, 1 internal valuables
Trekking Pole Carry
bungee tie off
Rain Cover
[backpack] 19.7 x 10.2 x 9.5in, [back length] 15 - 19in
Claimed Weight
1lb 15.39oz
Manufacturer Warranty

Overall Rating

5 based on 9 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 9 reviews

What do you think about this product?


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5 out of 5 stars

September 17, 2021


[This review was collected as part of a promotion.] This backpack is the best, I give it different uses and one of them was when I went camping with my family, this backpack holds a lot of weight and has a grip for the waist that helps in the support, it does not get wet inside and you can put enough items on it. I recommend


Originally reviewed on

5 out of 5 stars

September 7, 2021

Comfortable and lite weight

[This review was collected as part of a promotion.] I went hiking up in red rock and this backpack held a lot of different items. It was also very very comfortable and economical. I didn’t feel like I was holding a lot of weight which was nice I would definitely recommend this backpack during short hikes. I did like the fact that if it started to rain it has the cover to keep the items from getting wet which is really great.


Originally reviewed on

5 out of 5 stars

September 6, 2021

Deuter is the bomb diggity!!!

[This review was collected as part of a promotion.] I absolutely love my brand new deuter hiking ac lite 21 bookbag.I love how my new deuter bookbag holds my helmet when I'm going hiking up hill.I love how spacious that it is for me to put everything I need.I highly recommend this product.Especially for the women out there that loves the outdoors.


Originally reviewed on

5 out of 5 stars

September 5, 2021

Comfortable, Stylish and Functional

[This review was collected as part of a promotion.] I ordered this bag for hiking and travel and it has been absolutely perfect. I take it with me every time that I hike. I even took it on vacation and used it for snacks and as a swim bag. It holds a lot more than expected and it is comfortable without being bulky. I wasn’t too sure about the main zipper at first but it actually makes it easy to add and remove items. I find that it works fine as long as you lay the bag down when using the main zippered compartment. It is form fitting and the material keeps me very cool during hikes. I have gotten several compliments on this bag while wearing it. I really love the pretty and bold green color. It makes me stand out. This is my first experience with the Deuter brand but I am very happy with this product and I can see myself using this product for years and years to come.

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Maria B

Originally reviewed on

5 out of 5 stars

September 4, 2021

Perfect for short hikes

[This review was collected as part of a promotion.] I got this almost a month ago and I have used it a couple of times. I’m petite (5’1) and it fits me really well. It’s very light and perfect to pack all the goodies needed for a day hike, jacket, provisions and even an umbrella. I’m totally in love with this backpack and it’s my new go to for short hikes.


Originally reviewed on

5 out of 5 stars

August 28, 2021

Excellent product

[This review was collected as part of a promotion.] Really good product with an excellent quality of material resistent and very usefull for a travel hiking. The color its so trendy and very comfortable recommended to all my friends who loves hiking like me.


Originally reviewed on

5 out of 5 stars

August 28, 2021

Light & Excellent Fit

[This review was collected as part of a promotion.] Just over the last couple years I've taken up day-hiking and mountain bike riding, so I'm a newbie at the outdoors. No way did I even realize that the pack I was carrying before was not built for a woman or someone my size to easily carry. I just shouldered the weight and bulk of my other pack, and now I am in awe of the Deuter AC Lite 21 SL!!! This pack is smaller and lighter yet has so many pockets to stash important hiking gear. Having an attached rain cover is one of the best features, and my other pack had no way to confidently carry my poles when I didn't need them so that they would fall out or hit me in the head. The Deuter has secure loops to hold both poles. The pack has a large outside pocket that I use for my water bottle, but it also has a slot to put a hydration pack hose if preferred. I like the small pocket on the top, which includes a key ring hook so keys don't get lost outdoors or in the bag. Great bag that I will use many times over the years and recommend to others.

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Originally reviewed on

5 out of 5 stars

August 26, 2021

Great amount of space

[This review was collected as part of a promotion.] The AC Lite 21 SL has a huge amount of space inside for storing everything you need while on a hike or camping trip. I love the color, very cute. The best part is the amazing back support. It feels so good while wearing even when loaded with gear. Stays put and is so comfortable.

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Originally reviewed on

5 out of 5 stars

August 25, 2021

The Best!

[This review was collected as part of a promotion.] I go hiking with my family regularly, so comfortable backpacks are a must. Finally one for me! This bag fits me perfectly around lady curves, without being bulky in any way. I can adjust it to exactly where I need it, and it stays put. So light, enough pockets/storage, and eye catching? It's a winner!


Originally reviewed on