You deserve only the fanciest of underpinnings! The Foundations Collection Slip, Camisole, and Tap Pants sewing pattern is a vintage-inspired bias-cut fantasy come to life!

Charts
Not sure which size range to choose? Learn more about our two size ranges here.
Sizes 2-20
| Size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| High Bust | 29 in | 31 in | 33 in | 35 in | 37 in | 39 in | 41 in | 43 in | 45 in | 47 in |
| 73.7 cm | 78.4 cm | 83.8 cm | 88.9 cm | 93.9 cm | 99 cm | 104.1 cm | 109.2 cm | 114.3 cm | 119.4 cm | |
| Bust A cup |
30.5 in | 32.5 in | 34.5 in | 36.5 in | 38.5 in | 40.5 in | 42.5 in | 44.5 in | 46.5 in | 48.5 in |
| 77.5 cm | 82.5 cm | 87.6 cm | 92.7 cm | 97.8 cm | 102.9 cm | 107.9 cm | 113 cm | 118.1 cm | 123.1 cm | |
| Bust B/C cup | 31 in | 33 in | 35 in | 37 in | 39 in | 41 in | 43 in | 45 in | 47 in | 49 in |
| 78.7 cm | 83.8 cm | 88.9 cm | 94 cm | 99 cm | 104.2 cm | 109.2 cm | 114.3 cm | 119.4 cm | 124.4 cm | |
| Bust D/DD cup | 32 in | 34 in | 36 in | 38 in | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in |
| 81.3 cm | 86.4 cm | 91.4 cm | 96.5 cm | 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | |
| Bust F/G cup |
33 in | 35 in | 37 in | 39 in | 41 in | 43 in | 45 in | 47 in | 49 in | 51 in |
| 83.8 cm | 88.9 cm | 94 cm | 99 cm | 104.2 cm | 109.2 cm | 114.3 cm | 119.4 cm | 124.4 cm | 129.5 cm | |
| Bust H cup |
34 in | 36 in | 38 in | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in | 52 in |
| 86.4 cm | 91.4 cm | 96.5 cm | 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132 cm | |
| Waist | 24 in | 26 in | 28 in | 30 in | 32 in | 34 in | 36 in | 38 in | 40 in | 42 in |
| 61 cm | 66 cm | 71.1 cm | 76.2 cm | 81.3 cm | 86.4 cm | 91.4 cm | 96.5 cm | 101.6 cm | 109.2 cm | |
| Hips | 36 in | 38 in | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in | 52 in | 54 in |
| 91.4 cm | 96.5 cm | 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132 cm | 137.1 cm |
Sizes 18-34
| Size | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
| High Bust | 39.5 in | 41.5 in | 43.5 in | 45.5 in | 47.5 in | 49.5 in | 51.5 in | 53.5 in | 55.5 in |
| 100.3 cm | 105.4 cm | 110.5 cm | 115.6 cm | 120.7 cm | 125.7 cm | 130.8 cm | 135.9 cm | 141 cm | |
| Bust A cup | 42.5 in | 44.5 in | 46.5 in | 48.5 in | 50.5 in | 52.5 in | 54.5 in | 56.5 in | 58.5 in |
| 108 cm | 113 cm | 118.1 cm | 123.2 cm | 128.3 cm | 133.4 cm | 138.4 cm | 143.5 cm | 148.6 cm | |
| Bust B/C cup | 43 in | 45 in | 47 in | 49 in | 51 in | 53 in | 55 in | 57 in | 59 in |
| 109.2 cm | 114.3 cm | 119.4 cm | 124.5 cm | 129.5 cm | 134.6 cm | 139.7 cm | 144.8 cm | 149.9 cm | |
| Bust D/DD cup | 44 in | 46 in | 48 in | 50 in | 52 in | 54 in | 56 in | 58 in | 60 in |
| 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | 147.3 cm | 152.4 cm | |
| Bust F/G cup | 45 in | 47 in | 49 in | 51 in | 53 in | 55 in | 57 in | 59 in | 61 in |
| 114.3 cm | 119.4 cm | 124.5 cm | 129.5 cm | 134.6 cm | 139.7 cm | 144.8 cm | 149.9 cm | 154.9 cm | |
| Bust H cup | 46 in | 48 in | 50 in | 52 in | 54 in | 56 in | 58 in | 60 in | 62 in |
| 116.8 cm | 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | 147.3 cm | 152.4 cm | 157.5 cm | |
| Waist | 40 in | 42 in | 44 in | 46 in | 48 in | 50 in | 52 in | 54 in | 56 in |
| 101.6 cm | 106.7 cm | 111.8 cm | 116.8 cm | 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | |
| Hips | 48 in | 50 in | 52 in | 54 in | 56 in | 58 in | 60 in | 62 in | 64 in |
| 121.9 cm | 127 cm | 132.1 cm | 137.2 cm | 142.2 cm | 147.3 cm | 152.4 cm | 157.5 cm | 162.6 cm |
| Piece Name | Sizes 2-10 | Sizes 12-20 | Sizes 18-24 | Sizes 26-34 |
| Full-length Slip, Fabric (1, 2, 3, 4, 5, 6, 7, 8, 9) | ||||
|
60 in
|
3-1/8 yd | 3-1/2 yd | 3-5/8 yd | 4 yd |
| 2.8 m | 3.2 m | 3.3 m | 3.7 m | |
| Knee-length Slip, Fabric (1, 2, 3, 4, 5, 6, 7, 8, 9) | ||||
|
45 in
|
2-7/8 yd | 3-3/8 yd | 3-3/8 yd | 3-3/4 yd |
| 2.6 m | 3.1 m | 3.1 m | 3.4 m | |
|
60 in
|
2-3/8 yd | 2-3/4 yd | 2-3/4 yd | 3-1/8 yd |
| 2.2 m | 2.5 m | 2.5 m | 2.8 m | |
| Camisole, Fabric (1, 2, 3, 4, 5, 6, 7, 8, 9) | ||||
|
45 in
|
1-3/8 yd | 1-7/8 yd | 1-7/8 yd | 2-1/8 yd |
| 1.3 m | 1.7 m | 1.7 m | 1.9 m | |
|
60 in
|
1-1/4 yd | 1-1/2 yd | 1-1/2 yd | 1-3/4 yd |
| 1.1 m | 1.4 m | 1.4 m | 1.6 m | |
| Piece Name | Sizes 2-10 | Sizes 12-20 | Sizes 18-24 | Sizes 26-34 |
| Tap Pants, Fabric (10, 11, 12, 13, 14, 15) | ||||
|
45 in
|
1-1/2 yd | 1-3/4 yd | 1-7/8 yd | 2-1/4 yd |
| 1.4 m | 1.6 m | 1.7 m | 2.1 m | |
|
60 in
|
1-1/8 yd | 1-1/2 yd | 1-1/2 yd | 1-7/8 yd |
| 1 m | 1.4 m | 1.4 m | 1.7 m | |
| Tap Pants, Interfacing (16) | ||||
| 2 inches by 8 inches (5 cm by 20.3 cm) for all sizes | ||||
| Tap Pants, Natural Fiber Lining (14) | ||||
| 7 inches by 10 inches (18 cm by 25.4 cm) for all sizes | ||||
Sizes 2-20
| Size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
|
Bust A
|
33.25 in | 34.75 in | 36.25 in | 37.75 in | 39.25 in | 40.75 in | 42.25 in | 43.75 in | 45.25 in | 46.75 in |
| 84.5 cm | 88.3 cm | 92.1 cm | 95.9 cm | 99.7 cm | 103.5 cm | 107.3 cm | 111.1 cm | 114.9 cm | 118.7 cm | |
|
Bust B/C
|
33.75 in | 35.25 in | 36.75 in | 38.25 in | 39.75 in | 41.25 in | 42.75 in | 44.25 in | 45.75 in | 47.25 in |
| 85.7 cm | 89.5 cm | 93.3 cm | 97.2 cm | 101 cm | 104.8 cm | 108.6 cm | 112.4 cm | 116.2 cm | 120 cm | |
|
Bust D/DD
|
34.75 in | 36.25 in | 37.75 in | 39.25 in | 40.75 in | 42.25 in | 43.75 in | 45.25 in | 46.75 in | 48.25 in |
| 88.3 cm | 92.1 cm | 95.9 cm | 99.7 cm | 103.5 cm | 107.3 cm | 111.1 cm | 114.9 cm | 118.7 cm | 122.6 cm | |
|
Bust F/G
|
35.75 in | 37.25 in | 38.75 in | 40.25 in | 41.75 in | 43.25 in | 44.75 in | 46.25 in | 47.75 in | 49.25 in |
| 90.8 cm | 94.6 cm | 98.4 cm | 102.2 cm | 106 cm | 109.9 cm | 113.7 cm | 117.5 cm | 121.3 cm | 125.1 cm | |
|
Bust H
|
36.75 in | 38.25 in | 39.75 in | 41.25 in | 42.75 in | 44.25 in | 45.75 in | 47.25 in | 48.75 in | 50.25 in |
| 93.3 cm | 97.2 cm | 101 cm | 104.8 cm | 108.6 cm | 112.4 cm | 116.2 cm | 120 cm | 123.8 cm | 127.6 cm | |
|
Waist
|
31 in | 32.5 in | 34 in | 35.5 in | 37 in | 38.5 in | 40 in | 41.5 in | 43 in | 44.5 in |
| 78.7 cm | 82.6 cm | 86.4 cm | 90.2 cm | 94 cm | 97.8 cm | 101.6 cm | 105.4 cm | 109.2 cm | 113 cm | |
|
Hip
|
39.25 in | 40.75 in | 42.25 in | 43.75 in | 45.25 in | 46.75 in | 48.25 in | 49.75 in | 51.25 in | 52.75 in |
| 99.7 cm | 103.5 cm | 107.3 cm | 111.1 cm | 114.9 cm | 118.7 cm | 122.6 cm | 126.4 cm | 130.2 cm | 134 cm |
Sizes 18-34
| Size | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
|
Bust A/B
|
46.75 in | 48.25 in | 49.75 in | 51.25 in | 52.75 in | 54.25 in | 55.75 in | 57.25 in | 58.75 in |
| 118.7 cm | 122.6 cm | 126.4 cm | 130.2 cm | 134 cm | 137.8 cm | 141.6 cm | 145.4 cm | 149.2 cm | |
|
Bust C
|
47.25 in | 48.75 in | 50.25 in | 51.75 in | 53.25 in | 54.75 in | 56.25 in | 57.75 in | 59.25 in |
| 120 cm | 123.8 cm | 127.6 cm | 131.4 cm | 135.3 cm | 139.1 cm | 142.9 cm | 146.7 cm | 150.5 cm | |
|
Bust D/DD
|
48.25 in | 49.75 in | 51.25 in | 52.75 in | 54.25 in | 55.75 in | 57.25 in | 58.75 in | 60.25 in |
| 122.6 cm | 126.4 cm | 130.2 cm | 134 cm | 137.8 cm | 141.6 cm | 145.4 cm | 149.2 cm | 153 cm | |
|
Bust F/G
|
49.25 in | 50.75 in | 52.25 in | 53.75 in | 55.25 in | 56.75 in | 58.25 in | 59.75 in | 61.25 in |
| 125.1 cm | 128.9 cm | 132.7 cm | 136.5 cm | 140.3 cm | 144.1 cm | 148 cm | 151.8 cm | 155.6 cm | |
|
Bust H
|
50.25 in | 51.75 in | 53.25 in | 54.75 in | 56.25 in | 57.75 in | 59.25 in | 60.75 in | 62.25 in |
| 127.6 cm | 131.4 cm | 135.3 cm | 139.1 cm | 142.9 cm | 146.7 cm | 150.5 cm | 154.3 cm | 158.1 cm | |
|
Waist
|
45 in | 46.5 in | 48 in | 49.5 in | 51 in | 52.5 in | 54 in | 55.5 in | 57 in |
| 114.3 cm | 118.1 cm | 121.9 cm | 125.7 cm | 129.5 cm | 133.4 cm | 137.2 cm | 141 cm | 144.8 cm | |
|
Hip
|
52 in | 53.5 in | 55 in | 56.5 in | 58 in | 59.5 in | 61 in | 62.5 in | 64 in |
| 132.1 cm | 135.9 cm | 139.7 cm | 143.5 cm | 147.3 cm | 151.1 cm | 154.9 cm | 158.8 cm | 162.6 cm |
Sizes 2-20
| Size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
|
Waist
|
25 in | 27 in | 29 in | 31 in | 33 in | 35 in | 37 in | 39 in | 41 in | 43 in |
| 63.5 cm | 68.6 cm | 73.7 cm | 78.7 cm | 83.8 cm | 88.9 cm | 94 cm | 99.1 cm | 104.1 cm | 109.2 cm | |
|
Hips
|
37.75 in | 39.75 in | 41.75 in | 43.75 in | 45.75 in | 47.75 in | 49.75 in | 51.75 in | 53.75 in | 55.75 in |
| 95.9 cm | 101 cm | 106 cm | 111.1 cm | 116.2 cm | 121.3 cm | 126.4 cm | 131.4 cm | 136.5 cm | 141.6 cm | |
|
Total Rise
|
25.5 in | 26 in | 26.5 in | 27 in | 27.5 in | 28 in | 28.5 in | 29 in | 29.5 in | 30 in |
| 64.8 cm | 66 cm | 67.3 cm | 68.6 cm | 69.9 cm | 71.1 cm | 72.4 cm | 73.7 cm | 74.9 cm | 76.2 cm |
Sizes 18-34
| Size | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 |
|
Waist
|
41 in | 43 in | 45 in | 47 in | 49 in | 51 in | 53 in | 55 in | 57 in |
| 104.1 cm | 109.2 cm | 114.3 cm | 119.4 cm | 124.5 cm | 129.5 cm | 134.6 cm | 139.7 cm | 144.8 cm | |
|
Hips
|
50.75 in | 52.75 in | 54.75 in | 56.75 in | 58.75 in | 60.75 in | 62.75 in | 64.75 in | 66.75 in |
| 128.9 cm | 134 cm | 139.1 cm | 144.1 cm | 149.2 cm | 154.3 cm | 159.4 cm | 164.5 cm | 169.5 cm | |
|
Total Rise
|
29 in | 29.75 in | 30.25 in | 31 in | 31.5 in | 32.25 in | 32.75 in | 33.5 in | 34 in |
| 73.7 cm | 75.6 cm | 76.8 cm | 78.7 cm | 80 cm | 81.9 cm | 83.2 cm | 85.1 cm | 86.4 cm |
Fabric Notes
We recommend lightweight drapey fabrics in natural fibers that will be soft against your skin: rayon challis, Bemberg/cupro, and viscose; soft cottons like lawn, sateen, and voile; nylon tricot; and silk crepe de chine, habotai, or charmeuse. Cotton or rayon lining fabrics and lightweight silk/cotton blends are also a good choice.
We recommend against using polyester fabrics for this project, since man-made fibers will trap heat and moisture against your skin.
For the tap pants gusset: we recommend natural fiber woven or jersey fabric. Cotton, bamboo, and silk are all appropriate.
For the tap pants interfacing: we recommend fusible lightweight or very lightweight woven or tricot interfacing for the button guard on the tap pants. For sheer fabrics and lace, we recommend underlining the button guard with silk organza in your skin tone instead.
For the optional lace: we recommend any non-stretch, light- to medium-weight lace. Lace appliqués, lace yardage, and lace trims are all wonderful options!
Slip & Camisole Supplies
- Fabric for the slip or camisole
- Lace (optional)
- Thread to match
- Two 3/8-inch (1 cm) bra sliders
- Two 3/8-inch (1 cm) bra rings
- Loop-turning tool
Tap Pants Supplies
- Fabric for the tap pants
- Cotton or natural fiber fabric for the gusset lining
- Lace (optional)
- Thread to match
- Lightweight fusible interfacing (look for woven or tricot types)
- 1-1/4-inch-wide (3.2 cm) fusible stay tape to stabilize the buttonholes (alternatively, cut a strip from a scrap of fusible interfacing yardage)
- 1 to 2 yards (0.9 to 1.8 m) of 3/8-inch-wide (1 cm) twill tape to stabilize the waistline
- Six 1/4-inch (6 mm) buttons
















































































