The 30D Pertex® Quantum fabric is soft and easily packable, with a lightweight, tightly woven construction that enables the down to fully loft. The down-filled neck and zip baffles help seal in the warmth and the internal stash pocket is ideal for your keys, wallet, phone and torch.Weighing 1200g, with a lower limit of 5°C (41°F), it comes with a compression sack for an easy carry and a cotton sack to help preserve its integrity during long periods in storage.Details Insulation: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (300g / 10.6oz) Weight: 1000g/35.3oz Rab Sleep Limit: 5°C (40°F) Packed Size: 13.8in x 7.9in (35cm x 22cm) Pertex Quantum outer is soft and packable Stratus synthetic insulation used in the neck baffle to seal in warmth L-shaped main zip with down filled baffle to trap warmth YKK zipped internal stash pocket Hand filled in Derbyshire UK Can be used as a sleeping bag, or opened into a quilt Left and right hand bags can zip together Compression stuff sack included Cotton storage sack included for Home Storage Main - Recycled 30D polyamide/ Pertex Quantum/ 50 gsm/ fluorocarbon free DWR650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (300g / 10.6oz)