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This mountain jacket is filled with lightweight, water-resistant down to offer trusty insulation, even when wet, while the weather-resistant outer material protects you from spindrifts. Rab constructed this climbing parka with a mix of boxwall and stitch-through baffles, adding extra insulation in critical areas like the torso, while also keeping the jacket lightweight and packable.\u003cbr\u003e\u003cul\u003e\n\u003cli\u003eLasting Warmth for Alpine Adventures | From the Himalayas to local adventures above treeline, the Positron Pro Down Jacket offers warmth and protection in extreme mountain conditions.\u003c\/li\u003e\n\u003cli\u003ePertex Quantum Pro | Water-resistant coating to keep you dry and comfortable in fickle mountain weather.\u003c\/li\u003e\n\u003cli\u003e800-Fill RDS Recycled Hydrophobic Down | Lofty, ethically sourced down with a water-repellent treatment traps body heat and dries quickly.\u003c\/li\u003e\n\u003cli\u003eZoned Baffling | Extra insulation in exposed areas like torso, hood, and upper arms increases warmth while stitch-through construction on the underarm and sides reduces weight and increases range of motion.\u003c\/li\u003e\n\u003cli\u003eMountain-Ready Features | Harness-compatible zippered pockets, a belay-friendly 2-way front zipper, and an adjustable helmet-compatible hood keep the weather out, whether you’re belaying or climbing.\u003c\/li\u003e\n\u003cli\u003eZoned Baffling | Extra insulation in exposed areas like torso, hood, and upper arms increases warmth while stitch-through construction on the underarm and sides reduces weight and increases range of motion.\u003c\/li\u003e\n\u003cli\u003eMountain-Ready Features | Harness-compatible zippered pockets, a belay-friendly 2-way front zipper, and an adjustable helmet-compatible hood keep the weather out, whether you’re belaying or climbing.\u003c\/li\u003e\n\u003c\/ul\u003e"}
Rab Men's Positron Pro Down Jacket for Climbing and Mountaineering
$450.00
More from Rab
Whether you’re heading to the Himalayas or planning a big climb in Alaska, the Rab Men’s Positron Pro Down Jacket is up for the job. This mountain jacket is filled with lightweight, water-resistant down to offer trusty insulation, even when wet, while the weather-resistant outer material protects you from spindrifts. Rab constructed this climbing parka with a mix of boxwall and stitch-through baffles, adding extra insulation in critical areas like the torso, while also keeping the jacket lightweight and packable.
- Lasting Warmth for Alpine Adventures | From the Himalayas to local adventures above treeline, the Positron Pro Down Jacket offers warmth and protection in extreme mountain conditions.
- Pertex Quantum Pro | Water-resistant coating to keep you dry and comfortable in fickle mountain weather.
- 800-Fill RDS Recycled Hydrophobic Down | Lofty, ethically sourced down with a water-repellent treatment traps body heat and dries quickly.
- Zoned Baffling | Extra insulation in exposed areas like torso, hood, and upper arms increases warmth while stitch-through construction on the underarm and sides reduces weight and increases range of motion.
- Mountain-Ready Features | Harness-compatible zippered pockets, a belay-friendly 2-way front zipper, and an adjustable helmet-compatible hood keep the weather out, whether you’re belaying or climbing.
- Zoned Baffling | Extra insulation in exposed areas like torso, hood, and upper arms increases warmth while stitch-through construction on the underarm and sides reduces weight and increases range of motion.
- Mountain-Ready Features | Harness-compatible zippered pockets, a belay-friendly 2-way front zipper, and an adjustable helmet-compatible hood keep the weather out, whether you’re belaying or climbing.
How To Measure Your Shoe Size
Here are the best shoe size conversion charts - in US, UK, European, and inches, for men's, kid's and women's shoes.
If you've ever wondered "What size shoe is a 38?" (It is a men's size 7.5 in the US) or "What is a size 40 in shoes?" (that'd be a US men's size 9.5), read on to learn how to measure shoe sizes in different countries.
How do you measure shoe size? It is possible to measure your own foot using a ruler or a Brannock device, but since our feet our three dimensional, this will only approximate your measurements. After you've measured your foot, try using our conversion charts below to see what your size is. Be mindful that different brands, like Altra running shoes vs. Brooks running shoes vs. Oboz hiking boots, maybe run slightly different in sizes.
Women's Shoe Size Conversions
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 4 | 35 | 2 | 8.1875" | 20.8 |
| 4.5 | 35 | 2.5 | 8.375" | 21.3 |
| 5 | 35-36 | 3 | 8.5" | 21.6 |
| 5.5 | 36 | 3.5 | 8.75" | 22.2 |
| 6 | 36-37 | 4 | 8.875" | 22.5 |
| 6.5 | 37 | 4.5 | 9.0625" | 23 |
| 7 | 37-38 | 5 | 9.25" | 23.5 |
| 7.5 | 38 | 5.5 | 9.375" | 23.8 |
| 8 | 38-39 | 6 | 9.5" | 24.1 |
| 8.5 | 39 | 6.5 | 9.6875" | 24.6 |
| 9 | 39-40 | 7 | 9.875" | 25.1 |
| 9.5 | 40 | 7.5 | 10" | 25.4 |
| 10 | 40-41 | 8 | 10.1875" | 25.9 |
| 10.5 | 41 | 8.5 | 10.3125" | 26.2 |
| 11 | 41-42 | 9 | 10.5" | 26.7 |
| 11.5 | 42 | 9.5 | 10.6875" | 27.1 |
| 12 | 42-43 | 10 | 10.875" | 27.6 |
Men's Shoe Size Conversions
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 6 | 39 | 5.5 | 9.25" | 23.5 |
| 6.5 | 39 | 6 | 9.5" | 24.1 |
| 7 | 40 | 6.5 | 9.625" | 24.4 |
| 7.5 | 40-41 | 7 | 9.75" | 24.8 |
| 8 | 41 | 7.5 | 9.9375" | 25.4 |
| 8.5 | 41-42 | 8 | 10.125" | 25.7 |
| 9 | 42 | 8.5 | 10.25" | 26 |
| 9.5 | 42-43 | 9 | 10.4375" | 26.7 |
| 10 | 43 | 9.5 | 10.5625" | 27 |
| 10.5 | 43-44 | 10 | 10.75" | 27.3 |
| 11 | 44 | 10.5 | 10.9375" | 27.9 |
| 11.5 | 44-45 | 11 | 11.125" | 28.3 |
| 12 | 45 | 11.5 | 11.25" | 28.6 |
| 13 | 46 | 12.5 | 11.5625" | 29.4 |
| 14 | 47 | 13.5 | 11.875" | 30.2 |
| 15 | 48 | 14.5 | 12.1875" | 31 |
| 16 | 49 | 15.5 | 12.5" | 31.8 |
Big Kid Shoe Size Conversions (7 – 12 years)
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 3.5 | 35 | 2.5 | 8.625" | 21.9 |
| 4 | 36 | 3 | 8.75" | 22.2 |
| 4.5 | 36 | 3.5 | 9" | 22.9 |
| 5 | 37 | 4 | 9.125" | 23.2 |
| 5.5 | 37 | 4.5 | 9.25" | 23.5 |
| 6 | 38 | 5 | 9.5" | 24.1 |
| 6.5 | 38 | 5.5 | 9.625" | 24.4 |
| 7 | 39 | 6 | 9.75" | 24.8 |
Little Kid Shoe Size Conversions (4 – 7 years)
| US Sizes | Euro Sizes | UK Sizes | Inches | CM |
|---|---|---|---|---|
| 10.5 | 27 | 9.5 | 6.625" | 16.8 |
| 11 | 28 | 10 | 6.75" | 17.1 |
| 11.5 | 29 | 10.5 | 7" | 17.8 |
| 12 | 30 | 11 | 7.125" | 18.1 |
| 12.5 | 30 | 11.5 | 7.25" | 18.4 |
| 13 | 31 | 12 | 7.5" | 19.1 |
| 13.5 | 31 | 12.5 | 7.625" | 19.4 |
| 1 | 32 | 13 | 7.75" | 19.7 |
| 1.5 | 33 | 14 | 8" | 20.3 |
| 2 | 33 | 1 | 8.125" | 20.6 |
| 2.5 | 34 | 1.5 | 8.25" | 21 |
| 3 | 34 | 2 | 8.5" | 21.6 |
FAQ & Tips
- What if I am between shoe sizes? We recommend you should size up, especially in active & sports shoes. This includes running shoes and hiking boots.
- Does 0.5 size make a difference in shoes? Yes, it certainly does! Wearing shoes that are too small can cause pain and injuries. Blisters, lose of toenails and bunions can all result from wearing shoes that are even 0.5 size too small. These are common ailments of beginner runners.
- Is one foot bigger than the other? It is common for people to have one foot that is slightly bigger than the other. Our tip is that you should buy shoes that fit the larger foot (buy pairs of shoes in the larger size of the two).
- Should shoes be tight or lose? Unfortunately, this is not a simple question. Shoes should not be too tight or too lose. You should be able to put a thumbs width at the end of your toe box, between your big toe and the pointy end of the shoe. You should also be able to snuggly fit your index finger between your heel and the back of the shoe. If you have not much (or not enough!) space in either of these areas, try a different size shoe.
- When should I try on shoes? A great tip for runners is to try on running shoes at the end of a work day. As you run, just like when you are on your feet for work, your feet swell. You will want to try on running shoes when your feet are at their largest. This allows them to still fit comfortably after a long distance run.
- What size shoe should I buy? This shoe chart is not a guarantee your shoes will fit. If you are in the area of Memphis, Tennessee, run on in to one of our running specialty & gear stores and our experienced fit experts will help you out!
Image below: A Brannock device is one tool run specialists use to measure shoe size. It can measure not only foot length, but also foot width.
