R.A.D UFO Unisex
R.A.D UFO Unisex - is backordered and will ship as soon as it is back in stock.
True to size in length for most runners. Narrow-to-standard and wide feet go true to size; extra-wide feet size up half due to a tapered, low-volume forefoot. Forgiving mesh upper; lace snugly to engage internal midfoot loops.
- Free shipping on orders $99*
- Easy 30-day returns
- Price-match guarantee
*Free standard shipping on orders with $99 or more in full-price items (lower 48 states). Sale and oversized items do not count toward the $99.
Getting the right size is the first step to comfort. Use this guide to choose your size and width online with confidence.
How to measure your feet at home
- Measure at the end of the day, when your feet are largest, wearing the socks you plan to wear.
- Stand on a sheet of paper with your heel against a wall and mark the tip of your longest toe.
- Measure from the wall to the mark in inches or centimeters. Measure both feet and use the larger one.
- Compare with the brand's size chart on the product page.
How a good fit should feel
- Length: about a thumb's width between your longest toe and the end of the shoe.
- Width: your foot shouldn't spill over the footbed or feel pinched at the ball of the foot.
- Heel: snug, with little or no slipping as you walk.
- Arch: the arch support should meet your arch without pressing into it.
Width guide
| Width | Women | Men |
|---|---|---|
| Narrow | 2A (AA) | B |
| Standard | B (M) | D (M) |
| Wide | D (W) | 2E (W) |
| Extra wide | 2E (XW) | 4E (XW) |
Shop wide width shoes.
Brand sizing notes
- European sizes (Birkenstock, Naot, Alegria, Dansko, ECCO): sized in whole European sizes. If you are between sizes, most customers size down and choose a regular width.
- Dansko clogs: should feel snug at the instep with a little heel movement as you walk; that is by design.
- OOFOS: most styles use unisex (men's) sizing. Women usually order two sizes down from their usual women's size.
- Running shoes: many runners go up a half size for long distances because feet swell.
Brand size charts are on each product page. Still unsure? Contact us and we'll help you choose, and remember returns are easy within 30 days on unworn shoes.
R.A.D UFO Unisex
The dual-layer PEBA midsole is the real deal for impact absorption — a thick 42mm stack that reviewers consistently praise for soaking up road miles without bottoming out, and the rocker geometry rolls you through each stride. The thin insole is removable, so custom orthotics fit. Two honest notes: the forefoot runs narrow, and at this stack height, uneven ground feels less stable than in a lower shoe.
Description
Description
The R.A.D® UFO is a road-running Super Trainer — built to build speed across distance.
At the UFO's core is SUPEFOAM™, a dual-layer PEBA blend. The soft layer improves running economy and reduces fatigue by cushioning each step, while the firm layer delivers powerful energy return with every stride — a catch-and-release system.
The flowing rocker and sculpted heel bevel are designed for smooth transitions and dynamic toe-offs, keeping the runner in perpetual motion — on loop.
Built for comfort and speed across distance, the UFO is a precision instrument for every phase of a runner's training: ideal for long runs, progression sessions, and threshold work. At Walking Comfort, we recommend it to runners building toward race day who want one super trainer for the bulk of their training.
Designed for road running — not the trail.
Tech Spec
Category: Road Running
Types of Run: Long Runs, Progression Runs, Threshold Runs
Heel Stack: 42mm
Drop: 8mm
Weight: 249g (US 9M)
Midsole: SUPEFOAM™ (PEBA Blend)
Design: Portland, OR, USA