An American classic

SILVADUR™ activates silver ions in the presence of undesirable bacteria

and is capped with weatherproof AC² fabric in areas exposed to rain or snow

Just because you like high performance fit and details doesn't mean you have to look overly technical

and combined with the stretch fabric

Sea to Summit Expander Travel Liner Size:Mummy An American classicThe Expander sleeping bag liner is made of a super soft and stretchy knitted poly cotton material. The Rectangular, Traveller and Double models do not have side seams, and combined with the stretch fabric, this offers an unprecedented level of comfot in a budget priced liner. A built in antimicrobial treatment keeps odors at bay and won't wash out of the liner when you throw it in the washing machine. This is the perfect travel companion for those