In this video I’m reviewing the Decathlon Forclaz MT500 15°C trekking sleeping bag, and I’m looking at it from the point of view of real summer mountain hikes—where the weather can change fast and nights can get surprisingly chilly. We’ve used similar Decathlon sleeping bags on our very first hiking trips, so I already know what to expect from this style of budget-friendly synthetic bag. Because it’s Forclaz, I’m also expecting solid quality for the price, and that’s exactly why I wanted to take a closer look. I go through the main features and specifications and talk honestly about the pros and cons for moderate climates. The big takeaway is simple: if you’re planning summer hikes in the mountains and you want a reliable, affordable sleeping bag that can handle unstable temperatures, this MT500 15°C option is worth considering. I also ask you if you’ve used a synthetic sleeping bag before, because for many hikers it’s a practical choice—especially when you want something easy to live with on the trail without paying premium prices.