I don't think this is a 4 season bag. It is light, packs fairly small, and has a durable shell. For 3 seasons it should be fine. I'm 6ft 2in and it's long enough. The zipper also feels pretty good. I think it will last. I got it on sale and it's definitely worth that price.

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TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Green

TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Orange

TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Sky Blue

TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Sapphire Blue

TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Navy Blue

TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Black

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شراء TOBTOS Mummy Sleeping Bag, 4 Season Warm & Cold Weather Camping Sleeping Bag for Adults, Lightweight Backpacking Sleeping Bag with Compression Sack for Camping, Outdoor, Hiking, Backpacking-Black