Giant

Giant 700 x 28-32 (27" x 1 1/8"-1 1/4") SV Schrader Tube: 35mm Valve (Bulk Discounts)

Need to stock up on tubes for your hybrids, commuter bikes, or older 27 inch tubes?  Giant's tubes are among the nicer ones out there, and worth their $9 MSRP if you have the means...