The Traveller is Sea to Summit’s silk liner with a built-in pillow slip. The matching Amazon listing for ASIN B001C5DA54 is titled Traveler with pillow case 88 x 36 in and lists Traveler weight at 6 oz.
Published spec copy for this cut also uses 225 x 92 cm, about 165 g, AA-grade ripstop silk, polyester/Lycra stretch panels, and a stuff sack. Sea to Summit’s current U.S. catalog leads with a different Silk Blend liner, so confirm the Traveller SKU before you buy.
Shortlist reason: a named Traveller cut with published length and ounces on the matching listing.