Product InformationThe Backpacker Editors Choice Award-Winning Sonic has been praised as the only bag you really need from -20 to 40 degrees. Now updated for 2019 with a redesigned draft collar and draft tubes to create a secure seal against cold air; overstuffed 800FP hydrophobic, RDS certified down; and an updated profile and shaped foot box, the Sonic continues to rock out as the King of Comfort from basecamp to summit.
Sonic Sleeping Bag - -20 Reg
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