Add Wish List Quick view + Quick Add Outdoor Research Helium Down Hooded Jacket Weighs 424g (size Medium) Baffle Type: Stitch-Through Down Treatment: Standard Fill Power: 800 Eco Initiatives: Bluesign, Responsible Down Standard Outer Fabric: Pertex Shield Weighs: 424g (size Medium) Fill Weight: 110g Lightweight warmth meets rugged durability—perfect for unpredictable adventures. Outdoor Research says Durable and lightweight Diamond Fuse down enhanced for weather protection with our exclusive waterproof Pertex Shield Diamond Fuse fabric on … Was: Now: £179.99 RRP: £299.99 | Save: £120.00 + Quick Add