The Trek is cut broader than a mummy bag to give you room to move. The side zipper + footbox zipper are great for ventilation and allow the bag to be opened and used as a quilt, opening up a world of possibilities for camping and travel in warmer climes. The Tk I is the lightest in the series.
FEATURES: Tapered rectangular with 3D hood; 2D PermaShell DWR shell fabric; differential cut shell; 60/40 fill ratio; side block baffle; zip draft tube with anti-snag; cushioned internal hood drawcord with dual adjustments; 2 way YKK #5 zips with separate foot zip; large sized internal zip pocket; includes lightweight Ultra-Sil compression bag and a combined storage cell/laundry bag
PRODUCT SPECIFICATIONS
Size Variation: Regular / Left Zip
Compressed Size: 5.1 liter
Compression Bag Supplied: Small; 10L to 3.3L
Fill Weight: 12.4 oz/350g
Bag Weight: 1 lb 12 oz/790g
Temp Rating: 32 F (EN Lower Limit)/0 C (EN Lower Limit)
Down: ULTRA-DRY Down 650+ Loft; 85/15 Premium Grey Duck Down