Spire I Sleeping Bag Mens Power/Heat input: 250g/h /3

Power/Heat input: 250g/h /3

Our best-selling base layer bottoms made from soft and breathable 100% merino wool jersey

a comfortable forefoot area for moving the toes

48 cm x 21

Spire I Sleeping Bag Mens Power/Heat input: 250g/h /3The Spire 1 Sleeping Bag combines optimal warmth and comfort for cool weather adventures. With a body contour profile and OneThermo insulation, it effectively retains heat. The 3D hood and redefined neck baffle minimize drafts and heat loss, while the shark fin foot box and full length insulated zip baffle provide additional insulation. A brushed polyester lining ensures effective moisture management. Additional features include an anti snag YKK