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Meet your instructor: Isabelle Mathers

Inspired by the workout tape era, In Session brings together statement leotards, bold color blocking and studio-inspired styling. Discover a modern take on vintage fitness, designed in true CSB style.

In Session by Isabelle Mathers

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Coming Soon
Fade Racerback Tank | Deep NavyFade Racerback Tank | Deep Navy
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Fade Racerback Tank | Deep Navy
Sale price$65.00 USD
Coming Soon
Fade Invisible Scrunch Leggings | Deep NavyFade Invisible Scrunch Leggings | Deep Navy
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Fade Invisible Scrunch Leggings | Deep Navy
Sale price$70.00 USD
Coming Soon
Fade Wide Strap Crop | Retro RedFade Wide Strap Crop | Retro Red
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Fade Wide Strap Crop | Retro Red
Sale price$55.00 USD
Coming Soon
Form Halter Bodysuit | Deep NavyForm Halter Bodysuit | Deep Navy
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Form Halter Bodysuit | Deep Navy
Sale price$65.00 USD
Coming Soon
Fade Invisible Scrunch Shorts 4" | Deep NavyFade Invisible Scrunch Shorts 4" | Deep Navy
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Fade Invisible Scrunch Shorts 4" | Deep Navy
Sale price$55.00 USD
Coming Soon
Fade Off Shoulder Crop | Deep NavyFade Off Shoulder Crop | Deep Navy
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Fade Off Shoulder Crop | Deep Navy
Sale price$55.00 USD
Coming Soon
Fade Invisible Scrunch Leggings | Retro RedFade Invisible Scrunch Leggings | Retro Red
fade-invisible-scrunch-leggings-deep-navy fade-invisible-scrunch-leggings-retro-red
Fade Invisible Scrunch Leggings | Retro Red
Sale price$70.00 USD
Coming Soon
Fade Off Shoulder Crop | Retro RedFade Off Shoulder Crop | Retro Red
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Fade Off Shoulder Crop | Retro Red
Sale price$55.00 USD
Coming Soon
Off Shoulder Sweatshirt | WhiteOff Shoulder Sweatshirt | White
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Off Shoulder Sweatshirt | White
Sale price$90.00 USD
Coming Soon
Fade Invisible Scrunch Shorts 4" | Retro RedFade Invisible Scrunch Shorts 4" | Retro Red
fade-invisible-scrunch-shorts-4-deep-navy fade-invisible-scrunch-shorts-4-retro-red fade-invisible-scrunch-short-4-inch-mocha
Fade Invisible Scrunch Shorts 4" | Retro Red
Sale price$55.00 USD
Coming Soon
Off Shoulder Sweatshirt | Grey MarleOff Shoulder Sweatshirt | Grey Marle
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Off Shoulder Sweatshirt | Grey Marle
Sale price$90.00 USD
Form Strapless Mini Dress | Deep NavyForm Strapless Mini Dress | Deep Navy
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Form Strapless Mini Dress | Deep Navy
Sale price$85.00 USD
Coming Soon
One Shoulder Slouchy Tee | Grey MarleOne Shoulder Slouchy Tee | Grey Marle
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One Shoulder Slouchy Tee | Grey Marle
Sale price$55.00 USD
Coming Soon
Mini Drawstring Shorts | Grey MarleMini Drawstring Shorts | Grey Marle
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Mini Drawstring Shorts | Grey Marle
Sale price$50.00 USD
Back In Stock
Form Leisure Tank | WhiteForm Leisure Tank | White
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Form Leisure Tank | White
Sale price$65.00 USD
Organic Cotton
CSB V Neck Sweatshirt | WhiteCSB V Neck Sweatshirt | White
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CSB V Neck Sweatshirt | White
Sale price$125.00 USD
Organic Cotton
Cropped Crew Neck | NavyCropped Crew Neck | Navy
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Cropped Crew Neck | Navy
Sale price$130.00 USD
Organic Cotton
Straight Leg Sweatpants | NavyStraight Leg Sweatpants | Navy
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Straight Leg Sweatpants | Navy
Sale price$130.00 USD
Organic Cotton
Straight Leg Sweatpants | Snow MarleStraight Leg Sweatpants | Snow Marle
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Straight Leg Sweatpants | Snow Marle
Sale price$130.00 USD
Racer Longline Rib Tank | WhiteRacer Longline Rib Tank | White
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Racer Longline Rib Tank | White
Sale price$55.00 USD