Quick Overview

Ultra lightweight sleeping bag designed to be used with a high loft insulated mat.

The ultimate in super lightweight sleeping bags specifically designed for use with high lofting insulated sleeping mats.

Mont is bringing back the half-bag with the Prolite series! The Prolite 250 has no down on the under side - instead, a couple of velcro straps secure your sleeping mat to the bag. Ideal for use with the Exped Synmat UL or Thermarest Neoair.

  • Filled with DWR treated 850+ loft Goose Down
  • Water resistant and breathable Hydronaute XT outer shell protects down from moisture
  • Radial Arc Baffle System maximises baffle height
  • Box walled construction for warmth and weight efficiency
  • Downless base for improved weight saving
  • Differential cut - inner smaller than outer to reduce cold spots
  • 90cm YKK 5 guage side zip
  • Sewn with Epic Thread for extra strength
  • Hood drawcord
  • Zip draft tube helps retain heat
  • 3D foot section
  • Tuck stitched baffles for greater durability
  • Inner shell made from 15 denier nylon
  • Comes with Ultralight Silicon Stuff Sac and large poly/cotton storage bag

    Tech Specs


    Ultralight bushwalking



    Fill weight

    250 g

    Fill type/loft

    Goose down 850+ loft

    Shell Fabric

    Hydronaute XT™

    Inner Fabric

    15 Denier nylon

    Cold Sleeper Temperature


    Warm Sleeper Temp


    Dimensions/Max User Height

    185 cm



    Total weight

    540 g


    Extra Info


    Stuff sack

    Ultralight sil-nylon stuff sack


    Box wall/Half bag








    Standard/Free shipping to major capitals takes 2-5 business days (after dispatch), with occasional delays.

    Order before 11am - we usually ship the same business day!

    Choose Express Post for priority packing and faster shipping.