G'day Louise,

The entire internal compartment (with internal divider open) is 45L with a 10L additional section which sits under the top of the hood. Deuter doesn't give a specification of the size of the lower compartment, but visually it appears to be around 15-20L.

G'day Lou,

Generally the best option will be to use a pack liner that will line the entirety of the pack, or grab a compression dry sack for your sleeping bag, and a pack liner for the body of the pack. The smallest pack liner in the Sea to Summit range is a 50L, which will do the main body of the 45 10 without the 10L extension under the hood. I'd recommend this size in conjunction with the dry sack for your sleeping bag, then you'll keep nice and dry for river crossings.

G'day Lynne,

The main body of the pack is 45L, and the 10L is the extra expandable space in the hood of the pack. 

G'day Jane,

You can grab a Sea to Summit Medium Ultra-Sil Pack Cover to suit your Deuter Aircontact Lite 45 10 SL Backpack. We've also just released a Deuter Pack Cover but they're not online at the moment. If you wanted to grab one of those, feel free to give us a buzz on 1300 914 007 and our customer service team can help you order one over the phone. If you grabbed one of those, you'd need the large size.  

G'day Cathy,

We wouldn't recommend you put your Deuter Aircontact Lite 45 10 SL Backpack in the washing machine, no. We'd suggest you use warm soapy water and a soft sponge to gently rub the trouble spots on your backpack. If you'd like, you can then use a spot of Febreze or similar to help with any bugs or odour on the sweaty spots.