Special inner Material| This sleeping bag has a new filling method. The upper part is filled with 670FP down while the bottom is filled with feather fabric. Regulator down sleeping bags tend to collapse and lose some heat-retaining capacity after use. However, by filling the bottom with feather fabric, the heat-retaining capacity of the sleeping bag will not decline as feather fabric is thermal and does not easily collapse.
Oversize & Comfortable| The size of this sleeping bag is as follows: M: (11+70) x 29inch/(30+180) x 75cm ; L: (11+74) x 31inch/(30+190) x 80cm. The size of the storage bag is as follows: M: 8 x 8 x 13inch/20 x 20 x 32cm ; L: 8 x 8 x 15inch/20 x 20 x 36cm. The weight of this sleeping bag is as follows: M: 1.89lbs/860g ; L: 2.07lbs/940g. You can choose the size that suits you.
Upgrade Structure| We use the 3D DIMENSIONAL PIPE PROCESS for this sleeping bag, which helps fix the down and retain heat. This process also reduces cold spots in the seams. Additionally, the feet part of the sleeping bag can be opened to release heat or used as a quilt when it's too hot. The head part of the sleeping bag has a double-layer wind-blocking design to keep your heat inside.
Detail Design| The zippers of this sleeping bag are from YKK, a well-known zipper brand. The velcro around the head part is designed not to stick to fur. The inner surface is made of skin-friendly material and the outer surface is made of waterproof material.
100% Satisfaction | This sleeping bag comes with a one-year warranty. We offer a full refund for the first 30 days if it doesn't meet your expectations and a replacement for the lifetime of your purchase! Just message us and we will respond within 24 hours if you have any problems with this sleeping bag.