Quick answer

A hi leg knicker rides up most often because the size is too large, the fabric lacks grip on the skin, or the cut doesn't match your body shape. Start by checking your size against the brand's measurement guide, then consider fabric and style alternatives if the problem persists.

Check your size first

Hi leg knickers rely on a snug fit around the hips and seat to stay in place. If the waistband or leg openings feel loose, the fabric can shift and ride upward as you move. Compare your hip and waist measurements to the brand's size chart — for silk charmeuse styles like the Posy Hi Leg Knicker, a smooth, slippery fabric can make a loose fit worse. If you're between sizes, choose the smaller one for a more secure hold.

Consider fabric and construction

Smooth silk charmeuse has less friction against skin than cotton or lace, so it's more prone to riding up. The Posy Hi Leg Knicker uses heirloom-worthy silk charmeuse with a delicate dot embroidery — beautiful, but the fabric's slipperiness means fit precision matters. In contrast, the Porcelain Hi-Leg Knicker uses breathable cotton lawn with French Valenciennes lace and a ruched seat for a cheeky silhouette that can grip better. If you love the high-cut look but struggle with slippage, a cotton or lace-trimmed style may stay put more reliably.

When to switch to a modern knicker

If you've tried sizing down and adjusting fabric choice but your hi leg knicker still rides up, your body shape may not suit the high-cut leg opening. A modern knicker with a lower rise and more coverage, like the Marble Modern Knicker in lightweight silk crepe de chine, offers a different silhouette that stays in place for many body types. The Marble features contouring elastic gathers at the center back and a signature hand-shaped lace bow — a practical alternative that still feels luxurious.

Diagnosis: Why your hi leg knicker rides up

  • Symptom: The leg openings or waistband shift upward during wear, requiring constant adjustment. This is a fit or fabric issue, not a design flaw.
  • Likely cause: Size too large for your hip measurement, or smooth fabric (silk charmeuse) lacking friction against skin. Check your size and consider fabric grip.
  • Corrective action: Size down if between sizes, or switch to a cotton or lace-trimmed hi leg style like the Porcelain Hi-Leg Knicker. Try these fixes before giving up on the hi leg silhouette.
  • Stop or choose another option: If sizing and fabric changes don't resolve the issue, your body shape may not suit a high-cut leg. Consider a modern knicker like the Marble Modern Knicker for a lower rise and more coverage. A different cut can provide the comfort and security you need.

Products mentioned in this guide

  • Posy Hi Leg Knicker: Drawing inspiration from a gown created by New Orleans designer Olympe Boisse in the 1860s, the Olympe collection is a sensory dream, evoking fantasies of parlor trysts and Victorian opulence. This collection's heirloom-worthy silk charmeuse fabric showcases richly hued bouquets floating upon an inky black backdrop. Shimmering pastel dot embroidery lends a modern sensibility to this… The smooth silk charmeuse is prone to riding up if fit isn't precise; choose this style when you prioritize fabric luxury and are confident in your size.
  • Porcelain Hi-Leg Knicker: The Marguerite Hi-Leg is our modern high cut take on a classic knicker. Breathable cotton lawn in a vintage floral print is topped off by French Valenciennes lace delicately inlaid into a ribbon motif at the front, as well as ruffled around the hem. A ruched seat creates a flattering cheeky silhouette, while a soft rayon gusset provides durability and comfort. Cotton lawn and a ruched seat offer more grip and structure than silk charmeuse, making this a better choice if you experience riding up with smoother fabrics.
  • Marble Modern Knicker: Perfectly seductive. Low rise, lightweight silk crepe de chine, knit gusset, contouring elastic gathers at center back. Signature hand-shaped lace bow inset at center front. The lower rise and elastic gathers provide a different fit that stays put for many body types, making this a practical alternative when hi leg styles don't work.