Saysky Lightweight Running Pack Review: A Strong First Effort for Trail and Distance Runners

Introduction

Running vests and running packs have become a genuinely useful part of many runners’ kits, especially as more people head to the trails and push longer distances. Saysky is a newer name in this space, and its first lightweight running pack arrives with a solid spec: 8 liters of storage, 300 grams on the scale, and a fully waterproof ripstop polyester body with waterproof zips throughout. It retails in the UK for £85.

After several months and a handful of longer runs in it, this pack turned out better than expected. Here is how it performed.

Who This Pack Is For

Saysky pitches this at trail running, long-distance training, and the lightweight commuter market. It is a running backpack rather than a fitted race vest, so it comes in one size and adjusts to your body with two front straps plus a side adjustment strap on each side. That makes it more flexible than a race vest, though less precisely fitted.

If you are moving up from a smaller belt or handheld bottles, or you want one pack that handles both trail days and running commutes, this is squarely aimed at you.

Main Strengths

Fit and comfort were the biggest surprise. Once the straps were dialed in, the pack sat securely even with two full 500ml soft flasks on the front and the back fully loaded. The wide straps sit comfortably across the shoulders, and the extensive mesh construction, including a two-layer mesh back panel with a foam insert that lifts the pack off your back for airflow, keeps things breathable. No rubbing, chafing, or irritation over the test miles.

Storage is generous for an 8-liter pack. On the back you get a main compartment, two stretchy stuff pockets either side for bottles, jackets, head torches, and nutrition, plus a smaller waterproof pocket on top with a handy key clip. Two bungee loops lower down let you carry running poles. On the front there are two bottle pockets topped by two large stretchy mesh pockets, and further up two smaller waterproof zip pockets that are ideal for salt tablets, gels, or emergency cash.

Build quality is what you would hope for at this price: durable fabrics, solid waterproof zips, and careful construction. There is also reflective detailing across the back, a genuinely useful safety feature when your route crosses road sections in the dark.

Storage and Fit in Practice

Over a few 10 and 11-mile test runs, the storage setup handled everything needed for long training days. The double pocket system on the back would fit the mandatory kit for a 50-miler, a 100k, or possibly even a summer 100-miler, though something like a UTMB kit list might be a stretch.

The front mesh stuff pockets are well sized and easy to reach while moving, although fitting two 500ml soft flasks in below eats into their volume a little. A small note on fit: after adjusting all the straps, there is a fair amount of excess webbing left dangling, so trimming it to length once you know your settings is worth doing before a long race.

Things to Consider Before Buying

A few trade-offs are worth knowing about. The pack does not come with bottles or soft flasks, which is frustrating at £85 since finding bottles that fit a specific pocket can be hit or miss. Harrier trail running 500ml soft flasks fit the front pockets particularly well, but adding a pair adds another £20 to £25, pushing the total setup past £100.

Second, sizing. This is an adjustable one-size pack, and runners who prefer the closer, more personalized fit of a race vest, such as the Salomon Advanced 12 Set, may find it requires more strap adjustment. Finally, the waterproof fabric covering the main zip caught on the zip pull a couple of times when opening, which could get frustrating in a race when you need to close the pack quickly.

Buying Advice

If you want a well-built, waterproof 8-liter pack for trail running and long training days, and you already own suitable soft flasks, this is a genuinely strong option with excellent storage and comfort once dialed in. If bottles included matters to you, or you prefer the more tailored fit of a race vest from a brand with a longer history in hydration packs, it is worth comparing alternatives first. With its own 500ml flasks in the box, this would be outstanding value; without them, factor the extra cost into your budget.

Conclusion

For a first entry into the running pack market, Saysky has done a very good job. The construction is quality, the storage layout is thoughtful, and the reflective detailing is a real bonus for road sections at night. With a couple of tweaks, notably pack-included soft flasks, this would move from solid to standout. As it stands, it is a pack well worth considering if it matches the way you run.