The award winning Nitestar Alpha 150 is made with our Alpha insulation. Combining excellent warmth properties with much-improved compressibility, it is smaller and lighter than ever before. Perfect for youth groups or your spring and summer adventures.Vango Nitestar Alpha 150 Features: Polair Hex Shell - A tough hexagonal ripstop polyester that is strong, highly breathable, and machine washable Polair Lining - Super soft lining which is also hardwearing and easily washable, Polair polyester Alpha Insulation - Lightweight and extra warm, Alpha has a great loft while compressing to a small pack size Off-Set Double Layer Construction - Off-set seams prevent cold spots around the stitching lines Warmer Weather Design - A NEW single layer construction allows for a lighter, cooler and more compact design for warmer weather trekking Mummy Shaped Sleeping Bag - Tapers from the shoulders to the foot, reducing pack size and increasing thermal efficiency 3D hood with Drawcord Closure and Shaped Sides - Prevents heat loss from the head whilst the shaped sides provide additional comfort. The convenient drawcord closure provides flexible adjustment Horizontal Stitching - Evenly spaced to hold insulation in place and ensure even distribution throughout Insulated Adjustable Shoulder Baffle - Retains heat within the sleeping bag Zip Guard with Anti-Catch Piping - Helps to prevent the zip from snagging on the lining, allowing easy opening and closing Insulated Zip Baffle - Retains heat within the sleeping bag and reduces cold spots Auto-Lock Two-Way Zip - Seals in warmth and provides adjustable ventilation. Auto-lock prevents the bag from opening during the night and can be accessed from inside the bag Woven Zip Puller - Allows you to quickly and easily move the zip Internal Pocket - Provides convenient storage for small items Hanging Loops - Allows you to easily hang your bag for quick and easy drying Temperature Ratings Independently Measured - In accordance with EN 23537:2016. Extensively tested to meet accurate temperature rating standards for peace of mind