Sky Rise Plain Vanilla Sizing and Fit Guide
By Thunderpants - New Zealand made | Published: 2026-10-25
Category: Product Reviews
Learn how to size and fit the Thunderpants Sky Rise Plain Vanilla briefs. Get concrete decision rules, sizing tips, and fit guidance for this high-rise style.
Quick answer
The Sky Rise Plain Vanilla fits true to size for most body shapes, but the key is measuring your natural waist and hips. Use the size chart based on waist and hip measurements, not your usual clothing size.
Why the Sky Rise fit is different
The Sky Rise is an extra high waisted version of the original Thunderpants brief. It sits on your natural waist, which is usually above your belly button, and tapers in at the top. This design keeps the waistband in place all day, but it means the fit depends more on your waist measurement than your hip measurement.
If you are between sizes, consider whether you prefer a snug or relaxed fit at the waist. The tapered top means a size up gives slightly more room without slipping down.
Trade-offs to consider
The Sky Rise is not ideal if you prefer low or mid-rise underwear. It also may not suit very short torsos, as the high waist can bunch or roll. For those with a significant difference between waist and hip measurements, the hip measurement may be the limiting factor.
Decision rules for Sky Rise Plain Vanilla sizing
- Measure your natural waist: Wrap a tape measure around the narrowest part of your torso, usually just above your belly button. This is where the Sky Rise waistband sits.
- Measure your hips: Wrap the tape around the fullest part of your hips and buttocks. Compare both measurements to the size chart.
- Choose size by waist first: If your waist and hip measurements fall into different size columns, pick the size that matches your waist. The tapered top needs a correct waist fit to stay put. If your hips are much larger than your waist, consider sizing up for comfort.
- Check the leg band: The leg band should lie flat without rolling. If it digs in, the size may be too small. If it gaps, the size may be too large.
- Consider shrinkage: Thunderpants are made from bamboo rayon, which may shrink slightly in the first wash. If you are between sizes, size up to account for possible shrinkage. Wash in cold water and air dry to minimize shrinkage.
Product facts
- Sky Rise Plain Vanilla: SKY RISE THUNDERPANTS, an extra high waisted version of our originals. They sit high on your natural waist and taper in at the top, so stay right where they are meant to all day long. The tapered top means the waistband stays put without digging in, but you need to measure your natural waist accurately to get the right size.
Sky Rise Plain Vanilla
Who the Sky Rise Plain Vanilla fits best
Best for
- People who prefer high-rise underwear that stays in place
- Those with a defined natural waist who want a secure fit
Not for
- Anyone who prefers low or mid-rise underwear styles
- People with very short torsos who may experience bunching at the waist
