Sea to Summit Ultra-Sil Compression Sack Size:13L Medium Premium low-density core features lightweight

Premium low-density core features lightweight wood core with air channels and basalt fiber reinforcement for a lively feel with increased strength and energy return

Handcrafted in Premana

Rounding out the design are 19° heel lifts that reduce calf and tendon strain on those steep ascents

S (68-81cm/50-58 cm)

100% recycled polyester collar for a cozy wool-like feel

Sea to Summit Ultra-Sil Compression Sack Size:13L Medium Premium low-density core features lightweightWhen you need to compress volume without significantly adding weight, the Ultra Sil Compression Sack is an excellent solution. Made from a water resistant, bluesign approved Ultra Sil 30D nylon fabric with Non PFC DWR this compression sack is far tougher than its weight would suggest. Ideal for use inside your pack or travel bag when you need to compress clothing or bulky soft items to allow space for other essentials or fun holiday items. Features